MACCAFERRY GUIA GAVIONES TERRAPLENES EN ESPAÑOL

TerraMesh™
Rise to the challenge

5
MACCAFERRI | Case history
WE WERE FOUNDED ON INNOVATION
In 1893 we started a journey towards
it, striving to balance the demands of
our societies and the environmental
equilibrium. Today, we are a leading
international provider of advanced
solutions to the civil, geotechnical, and
environmental construction markets.
All of our solutions are designed and
developed with an eye on the quality of life
and on preserving the environment and
our communities for future generations.
Rigorously tested and certified, our nature
inclusive systems ensure long-term
performance and sustainable blend with
the environment.

Sales in +130 countries
+3,000 employees
23 factories
+60 subsidiaries
GLOBAL
PRESENCE
LOCAL
KNOWLEDGE

Today, the design criteria behind the devel-
opment of civil engineering structures are
not only based on economic considerations
but also on the environmental and social
impacts of the structure.
In the late 70s, we designed and manu-
factured the first prototype of TerraMesh™
with that broad concept of sustainability
in mind. We aimed at creating reinforced
slope systems and mechanically stabilised
earth walls that could meet the needs of
the present with an eye on the future.
Over the years, our modular, versatile,
eco-friendly prototype has turned into a re-
nowned civil engineering structure and has
been used in thousands of projects across
the world. Thanks to our experience today
we can proudly say that TerraMesh™ is a
synonymous of reliability, durability, mate-
rial saving and environmental integration.
This is what we proudly present in this suc-
cess stories collection.
TOGETHER, WE RISE TO THE CHALLENGE!
Antoine Gagliardi
Head of DT BU at Maccaferri

11
10
Maccaferri’s renowned TerraMesh™
System is a modular system used to
form rock-faced reinforced soil walls
and embankments. It has been used
globally on some of the most significant
infrastructure schemes, including what is
believed to be the tallest reinforced soil
structure in the world at 74 m high.
VERTICAL AND NATURAL
ROCK FACING
8X10 DT WIRE MESH BASKET WITH
INTERNAL DIAPHRAGMS
MACTEX SEPARATION
GEOTEXTILE

13
12
TerraMesh™ Green is an environmentally
friendly modular system used to form
vegetated (green) faced soil reinforced
structures. As all components are factory
fitted, TerraMesh™ Green is the most
rapid to install reinforced soil system.
GREEN FACING
UP TO 70°
STEEL TIE RODS AND STEEL
TRIANGULAR BRACKETS
8X10 DT WIRE MESH EROSION
CONTROL GEOTEXTILE
WELDED MESH PANEL

15
14
If a rock-faced reinforced soil slope is
required, TerraMesh™ Mineral is the ideal
solution. TerraMesh™ Mineral features an
external welded mesh panel. The result
is a functional and aesthetically pleasant
retaining wall.
SLOPING ROCK
FACING UP TO 87°
STEEL TIE RODS AND STEEL
TRIANGULAR BRACKETS
8X10 DT WIRE MESH
WELDED MESH PANEL
SEPARATION GEOTEXTILE

17
16
Mega projects and / or projects of national interest, such as large road embankments, airports or railways. The dimensions are generally over 10,000
m² of surface, with TerraMesh™ walls with heights of over 20 meters. Projects may require in-depth geotechnical and stability investigations.
Big projects, with dimensions between 5,000 and 10,000 m² of surface and heights up to 20 meters. During the design and execution phase further
geotechnical and / or stability analyses were necessary; some projects also required particular attention in the drainage capacity of the structure.
Medium-sized projects, about 5,000 m² and TerraMesh™ wall heights around 10 meters. The project, also usually presented some difficulties in terms
of either construction or design, which were then resolved thanks to the TerraMesh™ solutions and our technical support.
Small/ medium-sized projects, between 2,000 and 5,000 m² and with a TerraMesh™ wall that can reach up to 5-10 meters in height. Standard
working conditions
Small project under standard working conditions, with overall dimensions of approximately around 1,000 m² of surface and heights of the
TerraMesh™ wall in between 2 and 5 meters.
3
4
5
2
1
The TerraMesh™, also thanks to its
versatility, lends itself to be used in any
type and size of project. Nevertheless,
every single project is curated and
tailored to rise to all kind of challenges!
Within the following collection, 5 levels
of engineering challenge stood out:
ENGINEERING CHALLENGE

19
18
Small project under standard working conditions, with
overall dimensions of approximately around 1,000
m² of surface and heights of the TerraMesh™ wall in
between 2 and 5 meters
ENGINEERING
CHALLENGE 1 3 4 5
2

21
20
Engineering challenge
“The Cortelluci Vaughan Hospital will be the first
Smart Hospital in Canada featuring fuly integrated
smart technology systems and dedicated devices
that can speak directly to one another, and improve
patient care.” - Mackenzie Health In keeping with
the concept of Smart Solutions and the need for
improved construction methodologies. The goal
of the site works portion of the project was to
minimize e carbon footprint of the earthworks and
create a green sustainable environment around the
hospital. The goal to reduce the carbon footprint
was compounded with the need to construct a
large storm pond to handle all the runoff from
the site. In order to do so a large pit had to be dug
out. Inevitably creating a large amount of surplus
material. With the hospital, parking lots and other
amenities taking up the majority of the space.
How does one maximize the use of all this surplus
marginal soil without trucking and dumping off site?
Vaughan
DISTINCTIVE LANDFORM USING MARGINAL
FILL FROM MAN MADE STORM POND
Create a green sustainable environment around the Cortelluci Vaughan Hospital
2018
Vaughan, Ontario, Canada
1
Our Solution
HOC Architects solution was twofold. The terrain
where the hospital is situated was relatively flat.
In order to create a pleasing area which was free
of height and to provide a berm that would blend
with the green scape, a vegetated landform was
devised. The small footprint of the available space
and the low friction angle for the marginal soils
was maximized by creating a TerraMesh™ Green
landform, in combination with the Maccaferri
Paradrain™ geogrids. The TerraMesh™ Green, a
proven vegetated reinforced soil system using PVC
coated and galvanized double twist wire was able
to create and support a 60’ angle face slope, while
the Paradrain™ geogrid attended to the marginal
fill. The Paradrain™ composite construction
allowed for drainage to dissipate water pore
pressure in cohesive silty clay soils while providing
reinforcement yet simplifying and accelerating
the construction process. In the end providing
stability for the Landform once constructed. The
construction of the landform went as planned. An
efficient reuse of soil, a maximization of space, with
an overall reduction in carbon footprint. The sum of
the parts working together in the creation of a living
architectural land mass.
Client:
Designer / Consultant:
Contractor:
Products used (Qty.):
Date of construction:
MACKENZIE HEALTH
HOC ARCHITECTS CORPORATION
ROCKY RIVER CONSTRUCTION
TERRAMESH™ GREEN 860 pcs
08/2018 - 12/2018

23
22
Tenth line is a gravel road at the Town of Halton Hills
between 27 Side Road and 32 Side Road. Land use
in the area is primarily rural, residential or farmland.
The topography of the site is undulating, with a
moderately steep slope. Based on two geotechnical
investigations, it was noted that approximately
110 meters of the adjacent slope was in distress.
Historically, guardrails had sunk into the slope, until
three rows of guardrails had been installed on the
slope. The reason for the slope distress was not
clear. One theory was that upper slope collected
a large amount of water that was not properly
diverted, and that ground water had no other option
but to move beneath the road and lower portions
of the slope. Each spring the town had to add road
gravel to continually resurface and regrade the road
which necessitated the need for future remedial
works.
Halton Hills
TENTH LINE LOT 29/30 ROADWAY
AND SLOPE REPAIR
An ideal and robust solution
2020
Halton Hills, Ontario, Canada
1
Our Solution
The town approached Maccaferri in 2016 to seek
an engineered solution to this challenge. The
engineering team proposed the following four
solutions:
• Full road reconstruction reinforcing the road
subbase with Macgrid™ EG. This is a high
modulus high density polyethylene (HDPE) grid
characterized by a tensile resistance in both
longitudinal and transverse directions.
• Installation of a layer of Macdrain™ below the
road subbase and behind the reinforced slope.
This allows water moving from the upper slope to
be diverted beneath the road and directed away
from the lower slope. Macdrain™ geocomposites
are made from a plastic drainage core that is
thermally bonded to a geotextile on both sides.
• Full slope reconstruction with a Maccaferri
TerraMesh™ Green. This is an environmentally
friendly modular system used to form a
vegetated (green) faced reinforced soil slope.
• Upper side slope protection with the use of
MacMat® R. To collect water from the upper
slope, the slope needed to be regraded, and the
slope protected from erosion. The MacMat®
R provided an ideal robust solution as it is a
reinforced polymer geomat which has a three-
dimensional matrix extruded onto a double
twist steel mesh. The steel mesh allows it to
be installed as one continuous sheet of erosion
protection.
Client:
Contractor:
THE TOWN OF HALTON HILLS
CHUNG & VANDER DOELEN ENGINEERING LTD.
GREENSPACE CONSTRUCTION INC.
MACGRID™ EG 1,975 m2
- MACDRAIN™ W 1,705 m2
TERRAMESH™ GREEN 269 m2
- MACMAT R STEEL 900 m2
02/2020 - 08/2020

25
24
The Utah Department of transportation Project on
I-15 required a permanent wire Face MSE retaining
wall for the bridge at the climbing Passing Lanes.
The Steel product needed to comply with the Buy
America Act requirements, provide a minimum
of 75 year service life expectancy, feature a free
draining element fascia, and provide an aesthetical
rockery wall look.
Kanosh
2020
Kanosh, Utah, U.S.A.
UDOT I-15, MP 135 TO MP 142.5 CLIMBING L
A solution with an over 75 year service life expectancy
Our Solution
Hayward & Rees Construction approached
Maccaferri Thru Hanes Geocomponents, we
submitted a TerraMesh™ MSE Retaining Wall
solution which is a single elemet Gabion™ Type face
unit that has a metal reinforcement element that
works in conjunction with Macgrid™ WG Geogrids
for wall stability. The solution provided savings on
installation time, utilizing the face rock available on
site. Maccaferri TerraMesh™ is included in the Utah
DOT Approved list of materials. The wall consisted
of about 5,000 SF of Face surface.
Client:
Contractor:
HARWARD & REES
TERRANE ENGINEERING
HAYWARD AND REES
TERRAMESH™ 260 pcs
06/2020 - 10/2020
1

27
26
Small/ medium-sized projects, between 2,000 and
5,000 m² and with a TerraMesh™ wall that can reach up
to 5-10 meters in height. Standard working conditions
ENGINEERING
CHALLENGE 2 3
1 4 5
2

29
28
The ski resort Val Cenis is located in Haute-Moriana
Vanoise,France. For skiing and snowboarding, there
are 125 km of slopes available and up to 29 lifts
transport skiers, it’s family friendly and considered
one the best location for beginners in Europe.
This work concerns the development of a platforms
of reinforcement necessary for the construction
of the six places chairlift des Arcellins and the
family track, at the ski station of Val Cenis in Savoy.
The focus of the project and it’s challenge was
on integration of the structure with the beautiful
landscape surrounding it.
Our solution
Maccaferri dimensioned the supports of the
embankments in TerraMesh™ Green, a solution
with a facing plant combined with a reinforcement
layer of double mesh twist. For this particular
project, it was also added a certified Paragrid™®
type 100 reinforcement geogrid Asqual, of variable
length depending on the height. The total work has
a length of 67 m for a height between 8.3 and 12
m. This solution can sustain great heights and pick
up very strong loads, as in the case of this project,
where it was necessary to take into account the
overloads linked to the weight of the snow and
groomers. Furthermore, the structure also has a
great response with respect to seismic stresses.
2
Lanslebourg
Mont Cenis
TSD DES ARCELLINS
A perfectly integrated structure for a beautiful landscape
2016
Lanslebourg Mont Cenis, 73, France
Client:
Contractor:
SE2MC
DCSA / SAGE INGENIERIE
GRAVIER TP
- PARAGRID™ 8,000 m2
06/2016 - 08/2016

31
30
Metz is a french city of around 120 thousand
people in the north-est of France. The city has a
rich and old history, funded as in the late Bronze
Age, it was the capital of the Gallic population
of the Mediomatrici during the III century DC. As
part of the development of the Northern Bypass
East of Metz and the upgrading to 2x3 lanes of
the A4 motorway, Maccaferri carried out work to
supply and implement the retaining structures in
the embankments reinforced with mineral facing
(TerraMesh™ Mineral). The three work areas
concern reinforced embankment retaining walls
were:
• The walls MS1 (316_4 direction 1) and MS2
(316_7 direction 1).
• The MS3 wall (317_4 sens1).
• The MS4 wall (316_9 direction 2).
2
Metz
WIDENING TO 2X3 LANES OF THE A4
ON THE NE METZ BYPASS
Mineral facing reinforced embankments
2021
Metz, la Moselle (57), France
Our solution
The reinforced soil structures are located at the
foot of the embankment highway. They are used
to retain the backfill caused by the widening of
the highway. The walls of support in TerraMesh™
Mineral present a variable height up to 5.7 meters
in height. They are surmounted by a slope at 2H:1V
of variable height. Above the TerraMesh™ mineral
wall, a concrete gutter of 20cm thick and 1.4 meter
wide was achieved; The channel was shaped along
the longitudinal profile and filled locally with a more
closed material (GNT 0/31.5) to ensure a level seat
to lay the gutter. TerraMesh™ Mineral modules
are made up of a mineral facing 30 cm thick at
the top and 50 cm of medium thickness, which is
extended by a layer of rear wire mesh of variable
length next the profiles, 3.5 and 4.5 meters. The
double twist fence constituting the facing and the
layers is coated with polymer for better durability.
Mineral TerraMesh™ structures are manufactured
in the framework of an ISO 9001 quality system
and are CE certified according to EU Construction
Products Regulation 305/201. The structure was
implemented by the Maccaferri teams, under
Asqual ROG certification (Production of Works in
Gabion™s).
Client:
Contractor:
SANEF
GROUPEMENT SETEC INTERNATIONAL / SETEC TPI
NGE
TERRAMESH™ MINERAL 4,712 m2
01/2021 - 05/2021

33
32
Valenciennes is a town in the Nord department,
Hauts-de-France, famous due to the Battle of
Valenciennes in 1918 during the World War 1 ,
during which seven British divisions attacked eleven
German divisions and won.
The challenge of this case study consisted of
the construction of infrastructure allowing the
crossing of rue Jean Jaurès in Bruaysur-Escaut,
in particular where the T2 tram line runs. The
bypass road network is relatively developed around
Valenciennes (A23 to the west, A2 to the south, RD
75 to the east and northeast), even though it did
not allow an effective bypass of the agglomeration
from the north. The northern bypass project of
Valenciennes met several objectives, including
restructuring of the departmental road network in
the northern part of the agglomeration.
R375-VALENCIENNES TRÉMIE JEAN-JAURÈS
NORTH BYPASS
The crossing of rue Jean Jaurès in Bruaysur-Escaut
2020
Valenciennes, Nord, France
Valenciennes
2
Our solution
Thedevelopmentconsistsoftherealizationofawork
of the north side of the hopper. The wall is arranged
in terraces and has a variable height between 1.58
and 6.32 m depending on the profiles. The work
was carried out in reinforced embankment with
Mineral TerraMesh™, with an inclined mineral facing
of 10° from the vertical, having a thickness of 0.3
m top and 0.5 m average thickness. The facing was
extended by a sheet of metal mesh behind the 2.5m
in length. In terraces, the interaction between tree
pits and the netting layers required an adaptation of
the system. We therefore proposed the cutting of
the fences constituents of the mineral TerraMesh™
around these structures. The upper part of the
concrete wall behind the reinforced embankment,
serving as a railing for the road behind the hopper,
was “dressed” using Gabion™s of thickness 0.3
m. Mineral TerraMesh™ is a product developed by
Maccaferri combining a double twist mesh and
an electro-welded facade panel. The double twist
fence, coated with Zinc/Aluminium and a polymer
sheath (for better durability), provides horizontal
reinforcement in the backfill and returns to the
facing to ensure the local stability of the massif.
The welded mesh, with a 50x100 mesh ensures
continuity aesthetic with the Gabion™s.
Client:
Contractor:
NORTH DEPARTMENT
SETEC INTERNATIONAL
GUINTOLI
TERRAMESH™ MINERAL 1,300 m2
- GABION™ 160 m2
11/2019 - 03/2020

35
34
To reconcile the challenges of road safety, the
framework of life and local development, the
Department of de l’héraul has initiated the
construction of the Montagnac deviation on the RD
613 located on the territory of the communes of
Aumes and Montagnac. Aumes and Montagnac are
two small French town in the Occitanie regione in
the southern France. This work required retaining
structures with mineral facing to be able to obtain
an infrastructure with an arc configuration made of
terraces.
Montagnac
DEVIATION OF MONTAGNAC RD613
Our solution to save materials and reduce the carbon footprint of the project
2019
Montagnac, 34, France
2
Our solution
The solution adopted was Maccaferri’s TerraMesh™
mineral, which consists of a mineral facing 50
cm thick on average, extended by a sheet of wire
mesh behind 3m in length. TerraMesh™ Mineral
structures were combined with reinforcement
geogrids of the Paragrid™ 50 and Paragrid™
100 type variable length and vertical spacing
depending on the Works. This technique benefits
from the advantages of resistance, flexibility and
durability of plastic-coated double twist mesh while
providing the desired aesthetics on this site with
the 100x100 mesh welded mesh to the facing. In
addition, the TerraMesh™ solution has enabled the
reuse of materials from the treated site for backfill
and has limited the thickness of facing stones. This
technique has therefore generated a significant
saving of materials and their transport, resulting in
a smaller carbon footprint.
Client:
Contractor:
CONSEIL DÉPARTEMENTAL DE L’HÉRAUL
EGIS/TASSERA
GROUPEMENT GUINTOLI-RAZEL BEC-COLAS
TERRAMESH™ SYSTEM 2,200 m2
- GABION™ 85 m2
09/2018 - 12/2019

37
36
The D1 Hričovské Podhradie - Lietavská Lúčka
highway is part of the state road from Bratislava
to the state border with Ukraine. The stretch
of motorway in question is also part of the
international line E-50: Paris - Nuremberg - Prague
- Brno - Trenčín - Žilina - Košice - Uzhhorod with
continuation through Ukraine and Romania to the
south or through Eastern Russia.
The retaining wall of considered in this case history
serves to secure the slope cone of support numbero
17 and 18 and the body of the D1 highway from
the 31.936 to 32.042 kms. Considering the
geological environment formed by the positions
of unconsolidated compressible clays, the support
system needed to be able to carry high loads
and absorb expected vertical and horizontal
deformations. The wall is 246 m long and reaches
a maximum height of 7.5 m, is graduated bench of
variable width, maximum height degree is 4.5 m
and two-tiered with an 80-degree slope steps with
modification of the embankment under the bridge.
D1 HRIČOVSKÉ PODHRAIDE - LIETAVSKÁ
LÚČKA, SO 206-00
A project capable of ensuring overall stability of the structure and sufficient bearing capacity of the subsoi
2017
Žilina, Žilina, Slovensko
Žilina
Our solution
The wall construction is designed from a
prefabricated system of the TerraMesh™ modular
structure formed by facing wire stone elements
with an integrated reinforcement network. The face
elements of the prefabricated TerraMesh™ modular
construction have dimensions of 2.0 × 0.5 × 0.8 m
and are reinforced in the form of a horizontal panel
with a length of 3.0 m z double-twisted steel mesh
with long-term tension. The external stability of the
reinforced wall is secured using Paragrid™ uniaxial
geogrids 100/05 with a length of 6-12 m. The face
of the wall has a graded slope 5:1.
The goal of the project was to ensure overall
stability of the structure and sufficient bearing
capacity of the subsoil and create the conditions
for an accelerated consolidation subsoil. Remedial
measures consisted of subsoil replacement with
a thickness of 1.5 m and supplemented by a
system of gravel ribs with 1.0 m wide and 1.5 m
deep. To ensure the total stability, a geoplate was
implemented on the replacement of the subsoil
formed by two layers of uniaxial Paragrid™ geogrids
200/05 with a length of 16.5 – 32 m and with a
long-term tensile with a strength of 126.5 kN/m.
Client:
Contractor:
NÁRODNÁ DIAĽNIČNÁ SPOLOČNOSŤ
DOPRAVOPROJEKT A.S
STRABAG S.R.O
TERRAMESH™ SYSTEM 885 m2
07/2015 - 08/2017
2

39
38
A technically challenging TerraMesh™ System
project in one of the most scenic locations in
Scotland, Peebles, alongside the River Tweed.
The A72 in the Scottish borders connects to the
River Tweed as it passes Dirtpot Corner, at Peebles.
The highway was very narrow which was a problem
for road users causing congestion and car accidents.
Large vehicles had to stop to pass each other, which
subsequently damaged the existing walls that
bordered the highway.
The 3 m widening, with associated road safety
parapet upgrades, required a retention solution due
to the presence of the River Tweed immediately
adjacent to the highway approximately 7 m below
road level. A fast-flowing river, the Tweed is also
one of the foremost salmon migration rivers in the
UK, so any solution had to be sympathetic to the
environment.
A72 ROAD WIDENING
A technically challenging TerraMesh™ System project in one of the most scenic locations in Scotland
2017
Dirtpot Corner, Peebles, Scotland
Dirtpot
Corner
2
Client:
Contractor:
PT CIPUTRA DEVELOPMENT TBK
PT MACCAFERRI INDONESIA
PT. WIJAYA KARYA TBK
TERRAMESH™ GREEN 4,000 pcs - MACGRID™ WG 8,000 m2
MACDRAIN™ W 15,936 m2
06/2017 - 09/2017
Our Solution
The Scottish Borders Council decided to widen
the highway by approx. 3 metres and started a
10 month contract to start the work in August
2018. The low height retaining wall and revetment
slope to the river needed to be replaced, plus the
construction of a new barrier would improve safety
in line with current standards.
Steep slopes and the river being below the road
caused project challenges in that there was a lack
of space to construct a new wall, and there were no
verges either.
A hybrid reinforced soil structure was designed
by MHB Consultants to retain the highway yet
minimise the impact on the surroundings. The
structures height would be 6m and would run 150
m along the River Tweed.
Maccaferri’s technical support was used alongside
Albion Drilling which enabled MHB to design a
tied-back Gabion™ and TerraMesh™ reinforced soil
structure. Maccaferri supplied and constructed the
TerraMesh™ System.
Scottish Borders Council also placed an
environmental clerk of works on the project who
monitoredandminimisedtheimpactofconstruction
works on the local environment.

41
40
The i54 development on the outskirts of
Wolverhampton in South Staffordshire is a 239
acre UK technology-based business park and
is located at junction 2 of the M54 motorway.
The £67 million regeneration and development
of the site commenced in 2011 as part of a joint
venture between City of Wolverhampton Council,
Staffordshire Council and South Staffordshire
Council and notably saw the construction of a new
Jaguar Land Rover engine plant in 2014. In January
2019, planning permission was granted for a 60
acre expansion to the west of the existing business
park in the direction of Pendeford Hall Lane, where
the Pendeford Nature Reserve and Pendeford Hall
Residential Park are located. A key condition of
the planning permission was to ensure the new
business park extension would not negatively
impact on the view from the residential park.
In order to maximise the industrial space available
within the new development and therefore increase
revenues, the proposed 6m high bund needed to be
constructed within a relatively narrow footprint so it
was immediately clear that a traditional bund with
shallow unreinforced slopes would not fit within
such tight constraints.
I54 DEVELOPMENT
Constructing a new business park without negatively impacting the view
2021
Wolverhampton, South Staffordshire, Uk
Wolverhampton
Client:
Contractor:
STAFFORDSHIRE COUNCIL
AMEY CONSULTING
AFS EARTHMOVING & AGGREGATES
07/2020 - 04/2021
Our solution
Throughout 2019, Staffordshire Council and their
engineering consultants Amey, engaged with
Maccaferri to develop proposals for a double-sided
reinforced soil bund to meet the requirements of
the planning and geometric constraints.Maccaferri
proposed the use of its Mineral TerraMesh™
reinforced soil retaining wall system, to create
two retaining structures either side of a central
core in order to drastically steepen the sides of the
proposed bund. The proposal consisted of a low
height Mineral TerraMesh™ wall of 1.5m retained
height with an 80° slope angle on the western
side of the bund and a taller 6m retained height
Mineral TerraMesh™ wall with a 70° slope face on
the eastern side. The crest slopes of the bund core
could then be graded at 1:3 and 1:3.5 respectively
and still produce a bund with a footprint to fit
comfortably within the available 23 m footprint.
The ground investigation report revealed that
in the southwest corner of the site there was a
large amount of sandstone rock that would need
to be excavated to reach the required level for the
development platform. Maccaferri proposed that
this material could be crushed to suit a class 1A
grading and used as structural fill to the Mineral
TerraMesh™ reinforced soil structures.This enabled
the use of mostly site won materials to build
the new bund which allowed the client to meet
environmental, sustainability and budget targets
with ease. This typifies the approach of Maccaferri
by trying to re-use site won fills wherever possible.
Paragrid™® polymer, Macdrain™ drainage
geocomposite a basal reinforcement layer of
Paralink™® 300 were also used in the project to
enhance the structural and drainage characteristics
of the structure.
2

43
42
Salvador is a Brazilian municipality and capital city of
thestateofBahia.SituatedintheZonadaMatainthe
Northeast Region of Brazil, Salvador is recognized
throughout the country and internationally for its
cuisine, music and architecture. With more than
2.9 million inhabitants as of 2020, it is the most
populous municipality in the Northeast, the third in
Brazil. The road connection between the Cajazeiras
housing projects was an old project of the City Hall
of Salvador in Bahia; the main objective was to
improve the mobility of these communities, which
suffered from constant congestion. The current
connection route was 1.4 km long, leaving the
Municipal Market located in Cajazeiras X towards
Cajazeira V and took about 50 minutes to be
crossed. Thanks to the improvement of this project
the commute was reduced to a third of the time.
Our solution
The project consisted in the creation of a platform for
the expansion of the road, through the construction
of a structure of containment in reinforced soil type
TerraMesh™ Grid. The structure have a height of 19.5
m and support the intense vehicle traffic. The building
was reinforced with Macgrid™ WG 200 geogrids, with
a base of 15.8 m and width. The top of the structure
was built 12 m wide, to be able to accommodate the
two bands of traffic and footpaths on both sides.
Salvador
CAJAZEIRAS V AND X LINK
Improving the mobility of the Cajazeiras houses
2016
Salvador, Bahia, Brasil
Client:
Contractor:
LIGA ENGENHARIA
JCJ CONSULTORI
LIGA ENGENHARIA
MACTEX™ H 6,900 m2
- GABION™ 48 pcs - MACGRID™ WG 42,745 m2
TERRAMESH™ 2,308 pcs
01/2015 - 03/2016
2

45
44
During 2012, Mina Chinalco Peru S.A, started the
construction of its new mining project “Toromocho”,
located in the district of Morococha, province
of Yauli, region of Junín. The Toromocho mine is
currently a large copper mine in the center of Peru,
in Junín Region, and represents one of the largest
copper reserves in Peru and in the world. The new
mining complex required the construction of several
operational areas of the mine, such as: Primary
Crusher, the Conveyor belt, and the Concentrating
Plant. Due to the geographical conditions, the
conveyor belt passes through areas with large
gaps and slopes, for which passage structures
and protection for the belt were necessary.
Our Solution
The JACOBS company, within the engineering of
the project, considered a structure in soil reinforced
with the TerraMesh™ System together with a
metal stave, which allowed the construction of an
uneven passage for the conveyor belt and, in turn,
enabled access over which mining trucks circulate.
Due to the geographical conditions of the area, this
type of alternative solution was technically and
economically viable for the project, and even so it
allowed the execution of the works in a short time.
Junin
WALL TERRAMESH™ SYSTEM FOR
THE ACCESS OF VARIANT 32
Our work for the Toromocho mining project
2012
Junin, Peru
2
Client:
Contractor:
MINERA CHINALCO PERU S.A.
JACOBS
JJC CONTRATISTAS GENERALES
TERRAMESH™ 10 TONS
07/2012 - 10/2012

47
46
Sociedad Minera Cerro Verde, one of the mining
companies leaders in copper production, carried out
an expansion of 850 million dollars that allows to
explore a primary sulfide body. This project process
approximately 1 billion tons of sulphides. The
Sociedad Minera Cerro Verde hired Fluor Daniel to
undertake a major expansion project. Fluor Daniel,
in partnership with Vector Peru, had the need to
build a wall in reinforced soil with heights of 6 to
12 m.
CERRO VERDE FLOAT AREA
Contributing to the expansion of the Cerro verde mine
2005
Arequipa, Peru
2
Arequipa
Our Solution
Vector Peru, a company known worldwide for
quality of its engineering works, proposed and
designed the reinforced soil structure with the
System TerraMesh™. The Terraesh™ System wall
was adapted perfectly to the characteristics of the
place, highlighting as main advantages the flexibility
and monolithicity of the system. The project was
carried out with the help of software MACSTARS®
2000, a program created by Maccaferri to facilitate
the correct use of its products, the wall was
supported on soil with good resistance parameters
and the backfill structure was rigorously selected
and compacted. On-site quality control was strictly
monitored. The structure is about 200 m long.
Client:
Contractor:
SOCIEDAD MINERA CERRO VERDE
VECTOR PERÚ SAC
GRAÑA Y MONTERO CONTRATISTAS GENERALES
TERRAMESH™ 60 TONS
08/2005 - 12/2005

49
48
Cotrel - Terraplenagem E Pavimentacoes is a
Brazilian construction company that seeks to
develop Brazil’s socio-economic and cultural
potential. For this project Cotrel - Terraplenagem E
Pavimentacoes had acquired a new Asphalt Plant
and needed to create two plateaus of service. The
gap between them was built to be 4.00 meters high
to improve the operation of the plant, which needed
a containment structure that could be quickly
executed, be economically viable and safe.
Santa
Maria
2
USINA DE ASFALTO COTREL
A fast and safe solution for Cotrel - Terraplenagem E Pavimentacoes
2016
Santa Maria, Rio Grande Do Sul, Brasil
Our solution
The new asphalt plant was located next to the plant
company’s crushing plant, the structure solution
containment in TerraMesh™ System was the
alternative that best met the prerequisites. Both
the material of face filling of TerraMesh™ System
elements as the structural embankment, were used
from the material produced by the crushing plant.
Client:
Contractor:
TERRAPLANAGEM E PAVIMENTAÇÕES
COTREL TERRAPLANAGEM E PAVIMENTAÇÕESCONSTRUCCIONES EL CÓNDOR
TERRAMESH™ 400 m2
- MACTEX™ N 1,380 m2
02/2016 - 04/2016

51
50
The Corps of Engineers of the Ecuadorian Army
is in charge of the maintenance and construction
of the Country. For this particular project they
had to design the way out of the bridge over the
River Estuary Emeralds cross over a thalweg of
considerable extension and height. Furthermore, a
solution was needed of low environmental impact
and with a face able to integrate with the natural
environment of the place. Due to topographical and
transit factors, it was necessary to find a suitable
solution that was flexible, economical, and safe.
Esmeraldas
ESTUÁRIO DO RIO ESMERALDAS
A solution with a low environmental impact
2010
Esmeraldas, Equador
2
Our solution
It was proposed to use the TerraMesh™ System
for the platform execution. The reinforced soil
structure required a maximum height of 13m
and an extension of 52 m, in order to fill the gap
in the thalweg. The TerraMesh™ System and
high strength geogrids were used Macgrid™®
WG as an additional reinforcement to obtain
the structure stability. For the construction
geocomposite for Macdrain™ drainage were also
used, to protect the landfill of unwanted seepage.
Client:
Contractor:
CORPO DE ENGENHEIROS DO EXÉRCITO DO EQUADOR
TERRAMESH™ 10 TONS - MACDRAIN™ 1,600 m2
- MACGRID™ 15,000 m2
06/2009 - 02/2010

53
52
Kariangau Offshore Supply Base (KOSB) Fuel
Terminal is a fuel terminal located in Balikpapan,
East Borneo; it serves as fuel storage for various
industries. The Client needed a retaining structure
for slope protection of the access road that connects
the port and the fuel terminal. Few slope failures
and erosion occurred from 2015 and some slope
remediation already been done in 2016. While the
area has a low seismicity level, there is a presence
of coal and clay shale at the project location which
could be the cause of the problem if appropriate
measures are undertaken. Certain substances of
coal, typically the iron sulfide (FeS2) can be oxidized
after being exposed to air and water, therefore they
have the potential to damage the retaining structure
if the adequate coating of the system is not applied.
The clay shale, while hard with high shear strength
when dry, can lose its shear strength when exposed
to air and water. The slope to be protected has
various height, ranging from 20 – 30 meters. The
initial solution was mass gravity retaining structure
with Gabion™ and woven geotextile.
Balikpapan
MSE WALL FOR SLOPE PROTECTION
AT KARIANGAU OFFSHORE
A retaining structure for slope protection
2019
Balikpapan, East Kalimantan, Indonesia Client:
Contractor:
PT. PETROSEA, TBK
PT. ZEKON INDONESIA
PT. PETROSEA, TBK
TERRAMESH™ 3,825 m2
01/2019 - 09/2019
Our Solution
Maccaferri proposed the hybrid MSE Wall structure
called TerraMesh™ System as an alternative to
mass gravity retaining structure with Gabion™.
Mainly, the TerraMesh™ System consists of
anchored Gabion™ made from double twisted
steel wire hexagonal mesh called TerraMesh™ and
woven polyester geogrid called Macgrid™ WG. The
TerraMesh™ units, considering the presence of the
coal layer at the project location, were coated with
Zinc 95% - Aluminium 5% and a polymeric formula.
Furthermore, to prevent water infiltration to the
system, a drainage geocomposite called Macdrain™
was installed behind. The erosion control mattress
called MacMat EM was installed to protect the
slope above the TerraMesh™ System from water
runoff, wind and all factors that can cause erosion.
The structure was designed using limit equilibrium
method software. Both static and seismic analysis
had been performed. Finally, the hybrid MSE Wall
solution called TerraMesh™ System proposed
lead to savings of the material cost of nearly 38%
comparing to mass gravity structure with Gabion™
and woven geotextile.
2

55
54
Vegetated reinforced slopes have become a familiar
retaining system in place of traditional reinforced
systems. These systems use tiebacks interacting
with engineered backfill to create a stable mass
to stabilize the retained soil over time. The natural
appearance of vegetation growing in the front of a
reinforced slope provides an environmentally sound
solution. The design of vegetated reinforced slope
systems requires an organic soil pocket within the
front face and directly behind that, free draining
granular backfill. Due to this configuration an in-
herent problem arises. Wherein any water within
this structure drains downwards away from the
front face. This lack of water results in stunted
growth. For the Hager slope project. A slope fail-
ure occurred during the widening of a trail within
a ravine setting. To stabilize the failing slope which
was adjacent to an existing residence. A natu-
ral looking solution was the prerequisite. It need-
ed to be constructed within a forested area, with
limited space. Further, due to the slope location,
there needed to be zero maintenance once built.
Burlington
HAGAR CREEK SLOPE-A SELF WATERING
VEGETATED SLOPE USING PARADRAIN™
An environmentally sound solution
2021
Burlington, Ontario, Canada
2
Our Solution
Team,SoilEngineersLtd.,thegeotechnicalengineers
along with Maccaferri’s Technical Department,
designed a TerraMesh™ Green Slope 5.6m high
using Paradrain™ 100 as the geogrid reinforcement,
with a 3m high 3:1 slope above it. Though
typically used with marginal fills to accelerate the
dissipation of pore pressures,the Paradrain™ in this
application do not only act as a reinforcement but
also act as a drainage channel. Due to gravity, any
water draining through the engineered fill flows
downwards, but with Paradrain™ partial amounts
of water would also is directed horizontally, thus
acting as a self-watering irrigation system. This
would ensure the structure vegetation. The work
was performed by Anthony’s Excavating Central
Inc. It was their first time installing the TerraMesh™
Green with Paradrain™. They found the installation
straightforward. The project was completed on
time and on budget and was a big “W” (win) for all
involved.
Client:
Contractor:
CITY OF BURLINGTON
SOIL ENGINEERS LTD.
ANTHONY’S EXCAVATING CENTRAL INC.
- PARADRAIN™ 3,510 m2
MACMAT 126 m2
- MACDRAIN™ W 430 m2
04/2019 - 05/2021

57
56
The Vauxhall wastewater treatment plant and
effluent pumping station is located beside the
Thames River at the City of London, Ontario. The
pumping station continuously receives treated
effluent downstream of the existing UV Disinfection.
The Vauxhall WWTP EPS discharges into an elevated
channel which provides the necessary head to
push the plant’s effluent into the river during high
river levels. In the past, the WWTP was flooded
due to major rainstorm events. After evaluation of
alternatives, the consulting firm recommended the
construction of a double sided protection berm with
clayey soils to make it impervious.
London
VAUXHALL WWTP EFFLUENT
PUMPING STATION & BERM
A solution to minimized the foundation footprint with steeper side slopes
2020
London, Ontario, Canada
2
Our Solution
In order to optimize the construction footprint of
the berm, a Maccaferri TerraMesh™ Green MSE
wall with Paradrain™ soil reinforcement was
proposed. The original solution proposed flatter
side slopes at 27° which created a larger footprint.
The Maccaferri solution minimized the foundation
footprint with steeper side slopes oriented at
60° to the horizontal. TerraMesh™ Green is an
environmentally friendly modular system used to
form a vegetated (green) soil reinforced slope or
embankment. It consists of pre-fabricated units of
double twisted wire mesh (8×10 type) lined with
an erosion control blanket and stiffened with a
welded wire mesh panel. The Paradrain™ Geogrid
is a high tenacity multifilament polyester yarn
that is placed in tension and co-extruded with a
polyethylene sheath into strips. The polyethylene
sheath is profiled to provide a shaped drainage
channel. The profiled element has a thermally
bonded nonwoven geotextile strip bonded on the
shoulders of the drainage channel. The Paradrain™
advantage is that it allows dissipation of excess
pore water pressure while using cohesive soils,
and also ensures soil reinforcement strength in a
uniaxial direction which is necessary for design.
The completed structure was an impervious clay
reinforced berm fully vegetated that will protect
the facility against future flooding events. The ends
of the berm transitioned from 60°slopes to a 2:1
slope which was constructed and protected with
Maccaferri MacMat N10 turf reinforcement mat to
prevent surficial erosion and promote vegetation.
Client:
Contractor:
THE CITY OF LONDON
DILLON CONSULTING
CLASSIC EXCAVATING
TERRAMESH™ GREEN 1,558 m2
- PARADRAIN™ 7,800 m2
MACMAT 2,766 m2
02/2020 - 08/2020

59
58
The Fresh Kills Landfill in Staten Island, New York
was in operation from 1948 – 2001, and was
once one of the largest landfills in the world. It
stretched over 2,200 acres, and at its peak, received
29,000 tons of waste per day. Over time, pollution
damages, pests, and destruction of the land began
to take a toll on the surrounding community. As a
result of community pressure, a law was passed
in 1996 requiring the landfill to cease operation by
the end of 2001.The New York City Department of
Parks & Recreation is responsible for creating park
land from the decommissioned Fresh Kills Landfill.
In October 2008, reclamation of the site began for a
multi-phase, 30-year site development. The Fresh
Kills Landfill was to be transformed into Fresh Kills
Park, to include reclaimed wetlands, recreational
facilities, and landscaped public parkland. As a part
of this reclamation, the New York City Department
of Parks & Recreation needed to create a roadway
and pedestrian walkway leading up to a lookout
area and comfort station. They needed a system
that would be able to be vegetated in order to blend
into the park like surroundings, so they contacted
Maccaferri for a retaining wall system.
Staten Island
2019
Staten Island, New York, U.S.A.
NORTHPARK AT FRESH KILLS
The reclamation from the decommissioned Fresh Kills Landfill
Our Solution
TerraMesh™ Green was chosen as the best solution
because it can be live staked in order to provide the
green wall that the New York City Department of
Parks & Recreation was looking to achieve. The
contractor was able to bury sonotubes in the top
of the wall during installation as locations for a
necessary guard rail to be installed later on in the
project. They were also able to prepare the locations
during installation where trees will be planted along
the top of the wall. They achieved this by marking
the location of each tree and placing a round steel
form in that area and filling with the appropriate
soil. Then they would backfill the form with the wall
fill material then remove the form.
Client:
Contractor:
ACF ENVIRONMENTAL
NYC DEPARTMENT OF PARKS & RECREATION
LOMMA CONSTRUCTION
TERRAMESH™ GREEN 405 pcs
12/2019 - 12/2019
2

61
60
The Department of Public Works and Highways
implemented various infrastructure projects
since the start of the new administration in 2016.
The projects formed part of the administration’s
program called, “Build, Build, Build”; out of all
proposal bridge construction and road widening
works had been prioritized. In Mindanao, the DPWH
Davao del Sur District Engineering Office allocated
portion of its infrastructure budget to one of its most
challenging projects to date - the rehabilitation and
reconstruction of roads with slips and landslides
along the Digos-Makar Road, a two-lane national
highway in the mountainous portions of the city.
The road is part of the Asian Highway, a network
of highway routes of international importance
within Asia and covers a total of 3,517 kilometres
of roads in the Philippines. In order to achieve the
rehabilitation and to upgrade the existing road to
a four-lane highway as a minimum requirement
for all Asian Highway-classified roads, the only
viable solution at that time was to build a retaining
structure in the cliff side of the Digos-Makar Road.
2
DIGOS-MAKAR ROAD
Our contribution to the “Build, Build, Build” Philippines administration’s program
2019
Digos City, Philippines
Digos City
Our solution
With close coordination among DPWH personnel,
Maccaferri engineers recommended a mechanically
stabilized earth (MSE) wall using Paramesh - a
combination of high tenacity polyester geogrids
(Paragrid™) as primary soil reinforcements and
TerraMesh™ system units for the facing of the wall.
The designed total wall heights ranged from 5 up
to 21 meters; due to space constraints, majority of
the walls were required to have a vertical facing.
Upon submission of detailed analysis and design of
the ParaMesh MSE wall system, DPWH engineers
approved the recommendation and proceeded with
the construction. Backfill materials were qualified
and tested, and frequent compaction tests were
required. During the construction, a series of heavy
rainfall and moderate earthquakes (up to magnitude
5) have tested the wall system and to date, the wall
has stood still without any dangerous signs.
Client:
Contractor:
DEPARTMENT OF PUBLIC WORKS & HIGHWAYS - DAVAO DEL SUR DISTRICT
ENGINEERING OFFICE
DPWH - DAVAO DEL SUR DEO
TSQUARE CONSTRUCTION CORPORATION
TERRAMESH™ 4,717 CUM - PARAGRID™ 33,345 m2
- MACTEX™ NON-WOVEN GEOTEXTILE
20,720 m2
10/2018 - 11/2019

63
62
The Kuningan Dam is located in the west Java
province, in the district/city of Kuningan. The dam
has a capacity of 25.9 million cubic meters and is
planned to irrigate 3,000 hectares of community
rice fields in Kuningan, Cirebon, and Brebes
districts. The dam is also useful for water security,
controlling floods, providing 0.530 cubic meters of
raw water per second, and being able to conduct
0.5 megawatts of electricity.
A cut slope at Kuningan Dam Project (Kuningan
Jawa Barat) needed to be reinforced to avoid
stability failure. The original slope was cut to create
space for the access road of the Dam. The selection
of the right solution was necessary in order to build
a cost-effective structure with prompt construction
methods while fulfilling the standard of safety.
TerraMesh™ System by Maccaferri was selected in
accordance with its easy installation method and
capability to work together with available soil on
site.
Kuningan
RETAINING WALL AT KUNINGAN DAM
The wall reinforcement for the 25.9 million cubic meters Kuningan Dam
2018
Kuningan, Jawa Barat, Indonesia
2
Client:
Contractor:
PT. WIJAYA KARYA (PERSERO) TBK
PT. IKA ADYA PERKASA
- MACGRID™ WG1,900 m2
03/2018 - 10/2018
Our Solution
A combination of TerraMesh™ System and
geogrid combined with an additional structure
of wrapped around geogrid were built with 10.0
m - 13.0 m height. Macgrid™ WG was installed as
primary reinforcement and then integrated with
TerraMesh™ system as secondary reinforcement or
facia. The retaining wall structure was constructed
on a concrete capping with bored-piles underneath.
A well-compacted soil as structural fill along with
the system fulfilled the safety design criteria for
the retaining structure. A drainage composite called
Macdrain™ was added as a subdrain system inside
the retaining wall structure to control any potential
development of pore water pressure which might
become a problem in the future. Maccaferri
TerraMesh™ System granted many advantages
such as:
• Easy and Quick construction;
• Allowing drainage on the facia of retaining wall;
• Earthquake resistant thanks to its flexibility;
• Cost-effective;
• Environmentally friendly.

65
64
2
MWCI RESERVOIR
The protection of the Manila Water’s facility
2007
San Rafael, Rodriguez, Rizal, Region IV-A, Philippines
San Rafael
In line with the Manila Water Company Inc.’s
extensive water supply infrastructure improvement,
a 250,000 gallon-capacity water reservoir was
designed. BC Cuerpo Construction Corporation, the
general contractor of the project, initially planned to
build a concrete gravity wall as a retaining structure
on portions immediate to the location of the new
water reservoir. The facility is adjacent to a river,
which floodwaters could directly damage the facility
if not protected.
Our solution
Maccaferri engineers recommended two wall
systems due to project requirements and space
limitations. One of the systems involved a Gabion™
gavity wall placed along the upstream of the
reservoir’s intake to hold curing tanks, machine
room, and other equipment. The other wall system
featured Maccaferri’s TerraMesh™ System with
Macgrid™ woven polyester geogrid as components
for a mechanically-stabilized earth (MSE) wall
system. The MSE wall was located along the
downstream area to secure the 250,000 gallon
capacity water reservoir. Gabion™ mattresses, 0.5
meter in thickness, were placed at the base of the
intake structure for additional resistance against
scouring due to the possible impact of floodwaters
from the adjacent river. The proposed solution was
found to be more advantageous than other wall
systems for its flexibility, drainage capability, and
structural soundness. Moreover, the wall systems
were further proven to be more economical and
were constructed just on time as scheduled.
Client:
Contractor:
MANILA WATER COMPANY, INC.
BC CUERPO CONSTRUCTION CORPORATION
GABION™ 1,930 pcs - TERRAMESH™ 356 m2
- MACTEX™ 4,000 m2
03/2007 - 04/2007

67
66
The Vadodara-Gotri-Sewasi-Singrot road is a state
highway across river Mahi. The HFL of the river is
104.645. As per survey carried out; this section
(Km 6/415 to 8/124) used to submerge during high
floods. To prevent this, authorities proposed to raise
the embankment level to R.L. 105.2. In addition,
cross drainage works were required to carry the
excess water. Culverts at chainages 6/453, 6/705
and 7/450 Km. were part of the cross drainage
work. The maximum height of retention was 6.7m
and the culvert width was 12m. Heavy traffic load
was expected on the road.Considering the height
to be retained and expected loads on the structure,
it was advisable to adopt flexible reinforced earth
structure.
RETENTION AND BOX CULVERT PROTECTION
WORKS
A flexible, permeable and environmental friendly reinforced earth structure
2018
Vadodara, Gujarat, India
Vadodara
2
Client:
Contractor:
BALASORE ALLOYS LTD
DGMS
Z-TECH INDIA
TERRAMESH™ 2,415 pcs - TERRAMESH™ GREEN 4,325 pcs - PARALINK™
63,900 m2
MACDRAIN™ 16,500 m2
- BIOMAC™ NATURAL 1,000 m2
04/2015 - 07/2018
Our Solution
Maccaferri’s TerraMesh™ system with Gabion™
facia and Paralink™ as primary reinforcement and
mesh as a secondary reinforcement was selected
as the best solutions. The client, was convinced
about the system due to the following merits of
TerraMesh™ walls:
1. Permeability: As it is made up of Gabion™s,
the permeability of the front face ensures
the drainage of the backfill resulting in less
hydrostatic pressure which may develop
during heavy rainfalls.
2. Flexibility: System being the flexible soil
reinforcing system helps the structure to stand
stable during seismic activity.
3. Structural Safety: This system offers safety
against corrosion, fire, attack by earthworms,
insects, rats, etc.
4. Environmental Impact: System gets covered
with lush green vegetation enhancing the
urban landscape.
5. Versatility: They can either be built manually or
mechanically and in any climate.
6. Economy: Being simple, the system does not
require skilled labor or special equipment.
TerraMesh™ is a soil reinforcement system which
consists of panels of double twist hexagonal woven
heavy zinc and polimeric coated wire mesh used
for stabilizing steep slopes and vertical walls. It
comprises of a continuous horizontal panel of
mechanically woven steel wire mesh or geogrid
with an integral Gabion™ fascia unit. The fascia
unit is filled with hard durable rock-fill, identical to
a Gabion™, and the wire mesh/ geogrid tail is then
sandwiched between the compacted landfill.

69
68
The Chu-Yao Expressway is the second section
of the new connecting line planned for the
expressway network of the Central Yunnan Urban
Economic Circle. The line starts from Daba Village,
Donggua Town, Chuxiong City, and connects the
Yu-Chu Expressway under construction, passing
through Mouding County and Yao’an County ending
at Zengjiawan in the south of Dayao County, and
connecting to the Dayao-Yongren Expressway
currently under construction.
The project is located in the road section between
Zhongtun No. 1 Tunnel and Zhongtun No. 2 Tunnel.
It was originally designed as Zhongtun Bridge,
passing near Sanfeng Mountain Nature Reserve.
The main problems in this section were the
following:
• A large number of abandoned materials caused
by tunnel excavation needed to be transported
to a distance of 22 kilometers. During the
transportation of abandoned materials, roads
could have been damaged, which seriously
affected the production and life of residents
along the line, causing greater road traffic and
increasing safety hazards;
• The seismic intensity in the area is 7 degrees,
and the peak horizontal acceleration of ground
motion is 0.15 g;
• The project had complex geological conditions,
and the traditional scheme was expensive and
difficult to implement;
• The opening of the Chu-Yao Expressway
connected the three counties of Mouding, Yao’an
and Dayao. In order to reach the goal of an
expressway, the construction period was short,
and a technically feasible, safe, economical,
and efficient construction scheme was urgently
needed.
Mouding - Yao’an - Dayao
CHUXIONG - DAYAO HIGH-SPEED ZHONGTUN
BRIDGE TERRAMESH™ RETAINING WALL PROJECT
Connecting the three counties of Mouding, Yao’an and Dayao
2019
Mouding - Yao’an - Dayao, China
2
Our solution
In order to consume the tunnel discard side and
reduce the road traffic pressure, the headquarters
decided to change the Zhongtun Bridge with a fill
embankment scheme. The use of the TerraMesh™
wall technology, in the premise of ensuring the
safety and stability of the high fill slope, increased
the fill side slope rate and reduced the scope of land.
1. The slope foot was set with 3~9 m high weight
retaining wall and the reinforcement behind
the wall was designed to enhance the overall
stability of the subgrade (reinforcement spacing
of 1m and fold back). The maximum height of the
upper slope is 21 m.
2. The product used were reinforced Gabion™ by
TerraMesh™ system wall, geogrid, polyester
long fiber non-woven fabric. The wall wires were
galvanized with high wear-resisting organic
coating double-stranded hexagonal metal mesh,
the cage was filled with stone, polyester long
fiber non-woven fabric for filtration behind the
wall, the reinforcement material is 100 KN/m,
200 KN/m high strength fiber grille and finally the
structure was filled with the tunnel excavation
redundant discarded side.
3. The maximum height of the completed reinforced
gabbing design is 21 m, the reinforcement
spacing is 1m, from top to bottom, the first level
of slope height is 9m, with a slope ratio of 1:0.75
and the second level of slope height is 12 m with
a slope ratio of 1:1.
YUNNAN TRANSPORTATION INVESTMENT AND CONSTRUCTION GROUP CO. LTD
GUIZHOU PROVINCIAL TRANSPORTATION SURVEY AND DESIGN INSTITUTE
YUNLING CONSTRUCTION CO. LTD
TERRAMESH™ SYSTEM 962 pcs
06/2019 - 09/2019
Client:
Contractor:

71
70
The project is located 49 Km northwest of Chaihe
Town, Zalantun City. The site is mainly composed of
mining industrial zone, mineral processing industrial
zone, living auxiliary area, tailings reservoir,
discharge site, explosive depot, water source and
substation. According to the capacity of the raw ore
yard, the altitude of the top of the raw ore yard was
determined to be 880 m, while the ground elevation
of the north side was about 859 m. From the north
side to the south side there is an external road, with
a road elevation from 859 m to 873 m.
Therefore, the height difference varied between 7
m up to 21 m between the original surface line and
the raw ore yard.
2
Zalantun
INNER MONGOLIA GUOSEN MINING ERDAOHE SILVER
LEAD ZINC MINE RAW MINE TERRAMESH™ PROJECT
A flexible structure to allow structural deformation
2021
Zalantun, Inner Mongolia
Client:
Contractor:
INNER MONGOLIA GUOSEN MINING CO. LTD
CHANGSHA NONFERROUS METALLURGICAL DESIGN AND RESEARCH
INSTITUTE CO. LTD
CHINA RAILWAY 18TH BUREAU GROUP CO. LTD
TERRAMESH™ 2,038 pcs - PARALINK™ 22,000 m2
2020 - 2021
Our Solution
According to the topography and geological
conditions of the site and after a comparison
between the buttressed retaining wall and the
TerraMesh™ system structure scheme provided by
Maccaferri; the client and the design unit selected
the 1:0.1 TerraMesh™ retaining wall scheme.
Maccafferri’s solution was considered the most
convenient, considering the overall force of the
retaining wall, the costs and the ability to resist
fatigue deformation.
The TerraMesh™ system adopted in this scheme
is a reinforced Gabion™ combined with the geogrid
structure, which uses the flexible face wall of the
reinforced Gabion™ and the high tensile strength
characteristics of the geogrid to effectively
distribute the load stress and reduce the force on
the wall. Based on its flexible structure, it allows a
certain degree of structural deformation, which can
effectively alleviate the frequent effects of heavy
loads and prevents local damage or overall fracture
of the retaining wall caused by stress concentration
or excessive deformation. After the reinforcement
Gabion™ construction was completed, the ore
processing of the original mine yard was also
backfilled synchronously, which further saved
the construction time of the retaining wall. It also
avoided backfilling and rolling the raw ore yard after
the construction of large volumes of concrete. The
finished structure was highly appreciated by the
client.

73
72
Typhoon Sinlaku was a typhoon that affected
the Philippines, Taiwan, China and Japan. Sinlaku
brought torrential and almost endless rain over
most of Luzon from September 8 to the 11th,
causing floods and victims. On the right side of
the mountain slope of DK246+182 ~ +420 section
of the Wenzhou and Fuzhou passenger line, the
stratum is composed of two long granite rocks,
gray and brown, with 50% total weathering and
uneven weathering rock blocks (weak weathering).
The particle size of the rock blocks is 1.2m to 3.5
m. The slope has been cut to a 1:1.25 slope rate
during the typhoon on the 18th of July 2008. The
water-rich weathering layer softened, and a large
area collapsed. After the landslide toppled the
barrier stone wall, it flowed to the road outside the
slope on the left side of the line and the farmland
outside the road. Additionally, a debris flow formed,
seriously affecting railway safety.
Due to the debris flow caused by the landslide,
the original design of stone wall and stone trough
couldn’t meet the needs of railway safety.
2
Wenzhou-Fuzhou
WENZHOU-FUZHOU HIGH-SPEED
RAILWAY PROJECT
The recovering from a landslide caused by Typhoon Sinlaku
2019
Wenzhou - Fuzhou, China
Our Solution
Because of the landslide, the construction of
a retaining wall of 15 m high was needed. The
wall had to be relatively tall and had to take
into consideration that the slope instability was
mainly caused by poor drainage. Because of these
requests, the owner and design institute eventually
decided to adopt a flexible ecological protection and
well drained retaining wall solution.
The project was adapted to the uneven settlement
of foundation. The TerraMesh™ solution has good
water permeability and can reduce pore water
pressure, which is critical to ensure the retaining
wall stability and to mitigate the chances of
landslides. Lastly, the TerraMesh™ system perfectly
met the requirements of the construction period.
Client:
Contractor:
NANCHANG RAILWAY BUREAU GROUP CO. LTD.
CHINA RAILWAY FOURTH SURVEY AND DESIGN GROUP CO. LTD
CHINA RAILWAY 18TH BUREAU GROUP CO. LTD
09/2019

75
74
Yiwu has 1,859,390 inhabitants and its metro area,
joined with that of the neighboring Dongyang, is
home to 2,947,340 inhabitants. The city is famous
for its light industry commodity trade and vibrant
market and as a regional tourist destination. The
project is located on the right side embankment of
the YK3+362-YK3+690 section of Yiwu Shugang
Expressway, Jiande City, Zhejiang Province. The
retaining wall is located in a wide valley with a
flat terrain. The ground contains a small amount
of gravel, with a thickness of less than 5.0m, the
underlying bedrock is gray-green, purple-red and
gray-purple tuffaceous sandstone; the medium-
thick layers are intercalated with thin layers.
2
Yiwu
YIWU SHUGANG EXPRESSWAY
TERRAMESH™ PROJECT
A solution to shrink the subgrade slope foot, save earthwork and reduce land occupation
2015
Yiwu, China
Our Solution
According to the engineering geological conditions
and requirements of the project, it was decided to
adopt TerraMesh™ as a solution; which can greatly
shrink the subgrade slope foot, save earthwork,
reduce land occupation, and avoid occupying too
much land on the outside.
The TerraMesh™ adopts galvanized plastic-coated
double-stranded hexagonal metal mesh as the
face wall, the main reinforcement of the reinforced
soil adopts the high-strength grid with high
tenacity polyester yarn cluster grid of 150 KN/m,
and the inner wall is filled with stone. The stones
are sourced from the local quarries that meet the
requirements, and the materials are obtained
locally. The structural filling is made of crushed
stone after excavation, etc., which greatly saves the
project cost.
Client:
Contractor:
YIWU TRANSPORTATION BUREAU
ZHEJIANG PROVINCIAL TRANSPORTATION PLANNING AND DESIGN INSTITUTE
ZHEJIANG TRANSPORTATION ENGINEERING GROUP
TERRAMESH™ 1,521 pcs - PARAGRID™® 18,000 m2
2015

77
76
The project had to face many challenges in order to
be probably designed and built, such as:
• The project had high requirements on landscape,
safety, and land use restrictions. The slope
protection had to go from the northeast to the
southwest of the newly built 4S store site, with
an average height of 16m, in addition under the
slope the newly built residential area is located.
• The northeast side of the slope is an existing
building, and the building foundation is in the
form of a column structure. In the later stage,
the retaining wall needed to be connected with
the original building structure, furthermore the
drainage requirements were high.
• The southwest side is an embankment-type
buttress-type retaining wall.
• Part of the retaining wall construction area is 4m
deep miscellaneous fill, the original foundation
bearing capacity is low, and the foundation
treatment had a small budget;
• The retaining wall had high seismic requirements
and a short construction period
QINGHAI XINING TERRAMESH™ PROJECT
A solution for a high requirement on landscape, safety, and land use restrictions project
2021
Xining, Qinghai, Cina
Xining
Client:
Contractor:
QINGHAI JIAHAOSHENG LEXUS AUTOMOBILE SALES SERVICE CO. LTD
QINGHAI GEOTECHNICAL ENGINEERING SURVEY CONSULTING CO. LTD.
QINGHAI GEOTECHNICAL ENGINEERING SURVEY CONSULTING CO. LTD.
TERRAMESH™ SYSTEM 672 pcs - PARAGRID™ 29,871 m2
04/2021 - 06/2021
Our Solution
Thanks to the TerraMesh™ system solution it was
possible to support the structure and to increase
the strength while reducing the length of the rib.
Furthermore, for the project it was also reduced the
slope ratio of the retaining wall, shrank the foot of
the slope, reduced the construction land, removed
the surface miscellaneous fill and treated the
foundation to ensure the safety of the structure,
which connects with the existing buildings and
adjacent retaining walls.
2

79
78
Medium-sized projects, about 5,000 m² and TerraMesh™
wall heights around 10 meters. The project, also
usually presented some difficulties in terms of either
construction or design, which were then resolved thanks
to the TerraMesh™ solutions and our technical support.
ENGINEERING
CHALLENGE
2
1 4 5
3

81
80
The mosque of divinity it’ a must-see in the
Senegalese capital of Dakar, not only for the
beautiful panorama, with a picture perfect ocean
view, but also for it’s unique architecture that
melds elements of modernism with traditional
Islamic design. Senegal, in charge of organizing
the conference of Islamic States (OIC), needed a
series of infrastructure roads to make the city of
Dakar more accessible. The construction of the
ring road linking the tip of Almadies to the cornice
of Dakar required the construction of a structure
original architectural support above the mosque
of the divinity while preserving the access to the
monument. For this reason two flights of stairshad
to be integrated into the structure.
3
Our solution
The company EIFFAGE SENEGAL proposed the
solution of TerraMesh™ System, in order to integrate
the structure into the site protected from the Pointe
des Almadies. The design of the structure, carried
out by Maccaferri, has been validated by the Apave
Senegal Control office. The structure with a length
of 480 m and a maximum height of 17 m has a
structure on the front mineral in Gabion™s stabilized
by anchor layers of geosynthetic reinforcement
incorporated in the embankment’s techniques. It
incorporates a service underpass, to site fishermen,
and two flights of stairs that frame the rounding of
the upper roundabout.
Client:
Contractor:
MINISTRY OF EQUIPMENT SENEGAL
APAVE SENEGAL
EIFFAGE SENEGAL
03/2007 - 03/2008
CORNICHE ROAD
A more accessible Dakar
2008
Dakar, Sénégal
Dakar

83
82
Between the 2 and the 7 of October storm
Alex produced strong winds, heavy rain and
thunderstorms; the heavy weather led to landslides
and floods in south-eastern France, northern
Italy and central Europe, causing at least 15
fatalities. Hundreds of homes, along with bridges
and roads, were destroyed; outages of power,
telecommunication and water supplies occurred
due to fallen trees; rail services were cut off and
dozens of people had to be rescued.
The passage of storm Alex caused significant
damage in the Vésubie valley. The Roquebillière
road subdivision has then had to take emergency
measures to restore the axis road linking the
Vésubie valley to the Var plain. The subdivision
chose to rely on local businesses and the expertise
of Maccaferri to design and implement the
embankment retaining structures. The Boréon
valley, upstream of Saint Martin de Vésubie, has
been particularly badly affected by the storm on the
6km of road M89 leading to Lac du Boréon. Several
shifts of terrain downstream of the roadway took
place, requiring the construction of reinforcement
and retaining structures, associated with hydraulic
protections allowing resist the solicitations of the
torrent. A major challenge for companies, both by
technical constraints (only possible access by the
bed of the torrent) than by the constraints planning
(the reopening of the road was scheduled for the
start July 2021).
3
ACCESS ROAD TO BORÉON-STORM ALEX
OCTOBER 2020: LANDSLIDE 6
The recovering after storm Alex
2021
Saint Martin De Vesubie, France
Sant Martin
de Vesubia
Our solution
Large material resources have been implemented
by the companies to complete the project in a timely
manner record. Screening and crushing workshops
have been set up in place to recover technical
backfill used the construction of road platforms and
structures in reinforced floors. Stones were sifted
to best optimise the Gabion™ structures. Landslide
6 was Located at an altitude of more than 1300m,
about 120 m long and 15 m high; furthermore, this
part of the road was particularly exposed to the flow
which hit against the riverbank. For this reason, it
was decided to use hydraulic protection rather than
rockfill concreted. However, to support the road
embankment, a structure in reinforced TerraMesh™
Green embankment of 9m in height, combined with
Paragrid™ HF 100 reinforcement layers of 7 and
8m in length, was executed and surmounted by an
embankment at 3H2V 6 m high.
Client:
Contractor:
NICE COTE D’AZUR METROPOLIS
NICE COTE D’AZUR METROPOLIS
SLBTP, CACHAT TP, VENTURI
TERRAMESH™ GREEN MINERAL 800 m2
04/2021 - 07/2021

85
84
The railway from Orléans to Montauban is an
important and historical French 544 kilometre
long railway line, that links Orléans and northern
France to Montauban and southern France via
Limoges. The railway was opened in several
stages between 1847 and 1893, when the last
section from Limoges to Brive-la-Gaillarde was
completed. The project consisted of carrying out
the most important infrastructure intended for the
crossing of the Paris-Orléans-Limoges-Toulouse
railway line by the BUO, “ West Urban Boulevard”.
The operation to link the RD 820 - RD 959 is part
of the framework of the development of the new
“ BUO of Montauban. These developments aimed
to reduce traffic in its historical centre and create
more convenient routes to towns to the west of the
city. Section 1C included 3 crossing structures and 2
retaining walls. The structure has a total length of
91 m. The BUO platform is an embankment support
of approximately 5 m in height and reinforced with
facing mineral. The backfill materials used to build
the massif are of the treated A2 Clay type (from the
site).
3
WEST URBAN BOULEVARD
A combination of aesthetics and technicality
2019
Montauban, tarn et garonne (82), France
Montauban
Our solution
Maccaferri proposed her principle of backfill
reinforced with a mineral facing, TerraMesh™
Mineral, which combines aesthetics and
technicality. It is perfectly adapted to carry out this
type of work of a significant height by accepting
strong solicitations. Mineral TerraMesh™ structures
consist of a reinforcing layer of double-twisted wire
mesh placed horizontally in the backfill and returned
to the facing. The facade is lined with a 50x100 mm
welded mesh panel identical to those used for the
Gabion™s, thus allowing visual homogeneity with
the Gabion™ cladding conducted at the head of
the concrete abutments. The double twist mesh
is coated with a polymer enabling it to resist the
chemical aggressiveness of treated soils. Paragrid™
50, 100 and 200 high-performance reinforcement
geogrids were inserted into the backfill in addition to
the double twist mesh layers. The use of materials
from the site to constitute the backfill during
construction has enabled savings and a limited
carbon footprint. The work was implemented by the
Maccaferri team, under Asqual ROG certification
(Realisation of Structures in Gabion™s).
Client:
Contractor:
GREATER MONTAUBAN AGGLOMERATION COMMUNITY
EGIS/TASSERA
GUINTOLI-RAZEL BEC-COLAS CONSORTIUM
- GABION™ 85 m2
09/2018 - 12/2019

87
86
The Great Communication Road (SGC) E78 was one
of the largest infrastructures built in Italy in the
last few years, it connects the Tyrrhenian coast to
the Adriatic one. The structures of this case history
where all located on the Tyrrhenian side in the
provinces of Siena and Grosseto. The enlargement
of the embankments, or their construction from
scratch, since they are situated in areas prized from
a naturalistic point of view and highly frequented
by tourists, required the use of a system that was
effective, quick to implement and environmentally
compatible.
3
Siena - Grosseto RETAINING WORKS E78 SIENA – GROSSETO
One of the italian largest infrastructures built during the last few years
2016
Siena - Grosseto, Italy
Our solution
About 30,000 square meters of exposed façade
were created using TerraMesh™ Green combined
with high geogrids Paralink™ resistance used to
support road embankments. The green facing of
the TerraMesh™ system has given an excellent
insertion from the point of view environmental and
effective masking of the work. There combination of
TerraMesh™ Green with geogrids Paralink™ allowed
the construction of very high embankments with a
high structural strength.
Client:
Contractor:
ANAS
NUOVO FARMA SCARL
GRAVIER TP
03/2013 - 03/2016

89
88
Kitoi is a river flowing in the Irkutsk region and
Buryatia, 316 km long. The largest settlement in
Kitoi is the city of Angarsk, located at the mouth
of the river. According to the nature of the current,
Kitoy is often affected by summer, and sometimes
spring, floods. Particularly in 2001 one of the most
sever flood affetcted the Angarsk municipality for a
total damage of more than 251 milion rubles with
hundreds of buildings flooded.
With each flood, Kitoy took tens and hundreds of
meters of land from Angarsk. Due to the heavily
crumbling coast, some houses in the microdistricts
of Staritsa and Kirova stood a few meters from
the cliff. In order to protect the city from the
negative impact of the river during the floods,
the administration of the Angarsk urban district
decided to strengthen the eroded coast and build a
protective dam on it.
3
Our solution
To strengthen the crumbling coast the designers
of Spektr LLC chose the installation of a reinforced
earth retaining wall with the TerraMesh™ system.
The bank protection of the river was carried out at
two sites: the village Kirov with a lengh of 400 m
and the oxbow lakes with a lengh of 800 m.
The TerraMesh™ system turned out to be the most
optimal solution for strengthening the eroded
coast. The flexibility, permeability of the structure
and the use of geotextiles in the backfill allows the
system to operate as efficiently as possible in the
aquatic environment, which is especially important
in areas of periodic flooding. As a channel control
structure, the TerraMesh™ system limits the impact
of the river’s flow and thus prevents bank erosion
and washout.
The protective dam part of the project was also built
with Maccaferri’s products with two Gabion™ tiers
of 6 m height and separated by an intermediate
berm for the future pedestrian zone of 10 m wide.
In addition to the immediate task of bank protection,
the dam will make it possible to equip a place of rest
for the townspeople. An observation deck, family
recreation areas, children’s playgrounds, and paths
for cyclists will be created on the embankment.
Client:
Contractor:
ADMINISTRATION OF THE ANGARSK CITY DISTRICT
LLC “SPEKTR”
SIBNA LLC
TERRAMESH™ SYSTEM 6,822 pcs
06/2017 - 12/2018
EMBANKMENT IN ANGARSK
The bank protection for frequent floods
2018
Angarsk, Russia
Angarsk

91
90
The Mimar Sinan Mosque is one of the largest
mosques in Istanbul, located in the Ataşehir district
of Istanbul province; it was commissioned by the
Turkish government and designed by architect Hilmi
Şenalp to honor of the famous Ottoman architect,
Mimar Sinan. Within the scope of the Mimar Sinan
Mosque project the need for a retaining wall on the
TEM highway side of the mosque arose. The aim
was to control the slope and to create a platform
for the road by building a retaining wall in the sloped
area where the mosque’s parking road and access
road to the mosque are located. However, in the
landscaping works within the project, the concrete
surface did not fit the concept, if a reinforced
concrete retaining wall was to be built, it would have
negatively affected the architectural appearance of
the mosque. The reinforced concrete retaining wall
couldn’t give the desired image, and the reinforced
concrete retaining wall needed additional ground
improvements due to the weakness of the ground.
3
Credit: www.gursoyrestorasyon.com
Our solution
In the first meeting with the contractor, considering
the problem and the requests of the employer, it
was revealed that among the Maccaferri solutions,
the most suitable choice was the TerraMesh™ Green
retaining wall with geosynthetic reinforcement.
Architectural details were prepared in line with
the demands of the employer, and static and
seismic calculations were made by following to this
architectural concept. In addition, a drainage project
had been prepared due to the high groundwater
level. Although the total wall height is 15.00 m,
a wall analysis had been made in 3 stages with
variable cross-sections. Each stage was 5.00 m
high for a total length of the wall of 250.00 m.
TerraMesh™ Green modules were used on the front
of the wall, while the Paragrid™ 80 geogrid was
placed at every 0.76 m as the main carrier. As for
the material used in the structural filling, upon the
request of the employer , it was used graywacke
material from the foundation excavation of
another construction site nearby. The material was
deemed appropriate in the calculation after positive
results of the laboratory tests. Finally, after the
TerraMesh™ Green retaining wall application was
completed, spray grass was applied to the front
surface of the wall.
Client:
Contractor:
EMLAK KONUT
MACCAFERRI TURKEY
GÜRYAPI İNŞAAT
03/2011 - 05/2011
ATAŞEHİR MİMAR SİNAN MOSQUE
An easy access to one of the largest mosques in Istanbul
2011
Istanbul, Marmara, Turkey
Istanbul

93
92
3
R1BANSKÁBYSTRICA-NORTHERNBYPASS,SO262-00
RETAININGWALLATTHECIRCULARINTERSECTION
A reinforced retaining wall to sustain a road embankment
2011
Sásová, Banská Bystrica, Slovensko
Sásová
Banská Bystrica is a city in central Slovakia located
on the Hron River in a long and wide valley encircled
by the mountain chains of the Low Tatras, the Veľká
Fatra, and the Kremnica Mountains. Banská Bystrica
is a popular winter and summer tourist destination.
Due to the need to build a roundabout on the road
to the city hospital, it was necessary to build an
embankment. Since there were large differences
in height the realization of a classic embankment
body was not the most suitable; for this reason it
was proposed to build a reinforced retaining wall
under the embankment. The retaining wall in the
roundabout is designed as a reinforced wall with
TerraMesh™ Green and geosynthetics.
Client:
Contractor:
GRANVIA, A.S.
GRANVIA CONSTRUCTION S.R.O
DOPRAVOPROJEKT A.S.
05/2010 - 07/2011
Our solution
The reinforced wall is made of face prefabs, uniaxial
flexible geogrids and backfill soil. The face prefabs
are inclined at 60°. The prefabs are formed by a
double-twisted hexagonal mesh of the 8x10 type,
wire diameter 2.7/3.7 mm, surface treatment
Galmac+PVC, with a height of 0.58 m. The face of
the wall in its final state is green. The width of the
prefabs is identical to the anchor length and is 3.0
m. The maximum height of the wall is 9.92 m. The
wall is designed as a two-step, copying the route of
the road to the hospital and a circular intersection
with a 2.0 m wide slat at a 3% slope. The maximum
height of the first level is 5.22 m, the second is 5.8
m. The reinforced wall protrudes on both sides and
cuts into the original terrain. The length of the wall
is 168.0 m. Uniaxial flexible Paragrid™ geogrids are
used to ensure overall stability. The geogrids are
connected to the face prefab using an overlap of a
minimum length of 3.0 m.

95
94
The project concerned the restoration of the RJ-153
highway after the rupture of the embankment slope
of the composition of the highway for an extension
of 70 m. The breach was caused by a sum of different
reasons. Out of all the different factors there were
two main ones: the successive changes in the profile
length of the road and long construction delays over
the years, which have made it difficult to carry out a
homogeneous landfill; and the saturation and loss of
resistance of the massive due to heavy rains.
Our solution
The recovery project prepared by Geomechanics
in partnership with DER and the supported with
Maccaferri products, consisted of a structure on the
ground reinforced in TerraMesh™ System, Mactex™
N, Gabion™ Case, Macgrid™ WG, MacMat® L and
Macdrain™ 2L. The drainage layers with Macdrain™
2L were inserted in the landfill / natural soil interface
for protection against emergence of water, in
addition also to Gabion™ and MacMat® L used for
foot restraint and surface erosion protection.
3
São Fidélis
RJ-153 HIGHWAY
The restoration of the RJ-153 highway after the rupture of the embankment slope
2009
São Fidélis, Rio de Janeiro, Brasil
Client:
Contractor:
GEOMECANICA
GEOMECANICA
GEOMECANICA
TERRAMESH™ 106 pcs - MACDRAIN™ 182 m2
- GABION™ 100 m2
- MACMAT 210 m2
10/2009 - 11/2009

97
96
The Peru-Brazil interoceanic highway is an
important communication channel that allows
commercial exchange between both countries.
From Peru’s Pacific Ocean coastline, it continues
across the Andes mountains and through a large
part of the Amazon rainforest in the Peruvian
department of Madre de Dios. It then travels into
Northwestern Brazil where it connects with a
network of existing highways to the Atlantic. The
place has a severe climate, during the months of
April to December it suffers from strong rainfall
generating soil saturation and, consequentially,
instability. Therefore, a solution of containment to
stabilize the soil massif in addition to guaranteeing
fluvial drainage was needed.
Our solution
The construction of a wall was made in reinforced
soil, where the TerraMesh™ System was used. The
importance and particularity of this project is due
to its location, since It is an area of difficult access.
Therefore, it has implemented a solution that is easy
to install, stable and economically advantageous.
Lima
NORTH INTEROCEANIC HIGHWAY
Our solution to prevent instabiity due to soil saturation
2009
Lima, Peru
3
Client:
Contractor:
CONCIN IIRSA NORTE (ODEBERCHT)
02/2009

99
98
Sociedad Minera El Brocal S.A.A. carries out its
operations at the Colquijirca mining units and at
the Usina Huaraucaca Concentrator, located in
the District of Tinyahuarco, Province of Pasco
(4300msnm). Due to the increased of exploration
activities the company decided to build a Stacker
zone, which was executed by JJC – Schrader
Camargo SAC. Even if the slope resulting from the
cut was in a critical condition of stability, the results
significantly reduced a stacking area of a high-
density mineral.
Pasco
3
TERRAMESH™ SYSTEM STACKER
ZONE – EL BROCAL
A 16 m high wall in soil reinforced with TerraMesh™ System
2010
Pasco, Pasco, Peru
Our Solution
Faced with the problems presented, the mining
company needed a solution that would protect the
Stacker surface and, at the same time, generate a
larger area to stack minerals above containment.
To control slope instability, it was proposed to
construct a 16 m high wall in soil reinforced with
TerraMesh™ System. This wall generated a gain of
area at the top of the slope of 2,100 m², which is
manly used for storage of material with a density
of 3 ton/m³; the project considered a stacking
height up to 8 m. Macgrid™ WG Geogrids were
used in conjunction with the reinforcement of the
TerraMesh™ elements, forming the containment.
As the wall in reinforced soil is a flexible structure, it
is suitable to withstand possible accommodations
that may occur in the foundation.
Client:
Contractor:
SOCIEDAD MINERA EL BROCAL S.A.A.
BISA
JJC - SCHRADER CAMARGO SAC
TERRAMESH™ 32,280 KG - MACTEX™ 4,600 m2
- MACGRID™ WG 7,725 m2
06/2010 - 10/2010

101
100
The Consortium Vial El Arenal - Punta Bombón was
responsible for the construction of the Matarani
- El Arenal - Punta de Bombón in the Arequipa
region. The project was executed by the Ministry of
Transport and Communications (MTC) to improve
theefficiencyofvehiculartrafficalongtheCostanera
de Arequipa. The technical sheet specified the
construction of thirty reinforced soil structures, for
the which the contractor requested Maccaferri’s
technical support. Maccafferi contributed with the
analysis and dimensioning of the containment
section for each case.
Islay
3
TERRAMESH™ SYSTEM MATA
RANIKA ROAD. 14
A project to improve the efficiency of vehicular traffic along the Costanera de Arequipa
2017
Islay, Arequipa, Peru
Our solution
In order to create the platform that would form the
road and avoid invasion of private property that
surrounded the project, the TerraMesh™ System
reinforced soil solution was adopted. One of the
main reasons for adopting the solution was its ease
of construction.
Client:
Contractor:
CONSORCIO VIAL EL ARENAL - PUNTA BOMBÓN
HOB CONSULTORES
CONSORCIO VIAL EL ARENAL - PUNTA BOMBÓN
- MACGRID™ WG 118,950 m2
- MACTEX™ N 148,005 TN
04/2015 - 01/2017

103
102
The Cerro Verde expansion project increased the
rate processing from 120,000 t/d to 360,000 t/d of
ore, becoming the world largest mining center for
copper production. As part of the project expansion,
various containment works were required as well
as stabilization of the different areas of the new
plant, such as: the Primary Crusher, Plant Zone
Concentrator, Thickener Zone, Stockpiles and
Accesses Miners Haul Road.
Arequipa
K101 ACCESS 1 HAUL ROAD CERRO VERDE
A technical and economically advantageous solution
2014
Arequipa, Peru
3
Our Solution
The consulting company Fluor considered for the
project the Execution of a reinforced soil walls
based on the TerraMesh™ system with Macgrid™
WG geogrids combined with Bridge Plate steel
structures. This system allowed passage to the own
mining trucks on top and of light trucks through
the tunnels. The project also considered within the
design the loads coming from the mining trucks in
the Haul Road Zone. The solution resulted in many
technical and economic advantages.
Client:
Contractor:
SOCIEDAD MINERA CERRO VERDE S.A.A.
FLUOR CANADA LTD
MOTA - ENGIL PERÚ S.A.
TERRAMESH™ 30,000 KG - MACGRID™ 20,221 m2
- MACTEX™ 4,245 m2
03/2014 - 05/2014

105
104
During the construction of social housing, the
director responsible for the work detected the need
to protect the main road of the Río Azul Second
Stage subdivision with a containment structure
to guarantee vehicular traffic and avoid any risk.
Therefore, different containment options were
evaluated, among which two stand out a reinforced
concrete structure and the construction of a
mechanically stabilized wall.
Chilpancingo
ROAD STABILIZATION FRACC. BLUE RIVER
An environmental friendly, economically advantageous and stable solution
2016
Chilpancingo, Guerrero, México
3
Our solution
The challenge was of a high level due to the uneven
topography of the site, which had very steep
slopes (pronounced 16% near the cliff). Thanks to
its flexibility, easy construction and use of natural
material from the area, it was decided to build an
MME with a stone face, TerraMesh™ System.
The main reason for the choice were the fulfilling
of the technical stability requirements, the
environmentally friendliness as well as the
economic advantages. In this way, a wall 11.2 m
high was projected and built in the critical part with
a length of 93 m.
Client:
Contractor:
EDIFICADORA Y PROMOTORA PATRIMONIO SEGURO S.A. DE C.V.
MACCAFERRI
EDIFICADORA Y PROMOTORA PATRIMONIO SEGURO S.A. DE C.V.
TERRAMESH™ 616 m3
- MACTEX™ 1,600 m2
MACDRAIN™ W 120 m2
05/2016 - 10/2016

107
106
The Sinaycocha Mining Company decided to carry
out the regrowth of the tailings dam located within
its production facilities. The mine is located in the
department of Junín 4,2000 m.a.s.l, which despite
beingsmallinsize(5,000inhab.),itisofgreathistorical
importance, since it was the place where Simón
Bolívar obtained the decisive victory that put an end
to the Spanish domination over Peru. The original
dam was designed and built under the conventional
system using an earthen dam reaching a height of
almost 20 m in its highest section and with slopes
of 1.5H:1.0V. The mining unit required a growth
system built safely and in the shortest possible
time due to the increase in its production capacity.
Concepción
GROWTH OF SINAYCOCHA TAILING PRESSES
A fast and safe solution
2008
Concepción, Junin, Peru
3
Our solution
The Geoservice company, responsible for the design
and supervision of the project, with the support of
Maccaferri, proposed a growth system through a
structure reinforced soil with TerraMesh™ System.
A 6.00 m high wall was designed which closes the
entire dam perimeter. Additionally, the dam vessel
was waterproofed with an HDPE geomembrane in
order to prevent seepage into the body of the dam.
Client:
Contractor:
COMPAÑÍA MINERA SINAYCOCHA
GEOSERVICE INGENIERIA
COMPAÑÍA MINERA SINAYOCHA
10/2007 - 01/2008

109
108
Initially constructed in 1958, this section of the
Trans-Canada Highway #1 through the Fraser
Canyon, located approximately 53km east of Hope,
BC, began displaying signs of instability shortly
after completion. Over 40 years, the slide scarp
has regressed approximately 200 m. In 1961, a low
height (2.4 m H x 255 m L) concrete barrier wall
was constructed for rockfall protection (referred
to as the Ferrabee Wall). In 1976, the highway was
relocated in order to provide an additional 10m of
rockfall catchment area. Since 1966, there have
been over 60 rockfall events. The catchment area
behind the existing wall varies in width from 8m
to 22 m. In 2005, the British Columbia Ministry of
Transportation (BC MoT) determined that a new
rockfall protection structure was required at the
narrowest point along the length of the concrete
wall.
Fraser Canyon
3
SLIDE 5 EMBANKMENT,
TRANS CANADA HIGHWAY #1
An ambarkment able to withstand a maximum rockfall impact energy of 10,000kJ
2018
Fraser Canyon, B.C., Canada
Our Solution
In January 2006, BC MoT approached Maccaferri
in order to discuss the feasibility of designing a
rockfall embankment for this site. Simulations and
rolling rock tests conducted by BC MoT resulted in a
series of design parameters that required that the
structure must start at 6m in height and increase
to 8m, have a maximum base width of 7 m, and
be able to withstand a maximum rockfall impact
energy of 10,000 kJ. Previous design concepts
considered for this site included rockfall catch
fences, but currently no catch fence systems are
rated for 10,000kJ design impacts. The length
of the structure was a set at 96 m. Maccaferri
proposed using a TerraMesh™ System reinforced
earth embankment for the basic structure on the
site. The TerraMesh™ System was then modified to
have a single unit, double side woven wire Gabion™
facing and to be a free standing structure. The width
of the structure was partially dependent upon the
impact conditions resulting from a 10,000 kJ impact
on the structure. The custom TerraMesh™ System
Units were ordered by BC MoT in late 2007. The
installation contract was tendered and awarded to
Gable Construction. Specialist constructor Gabion™
Wall Systems was sub-contracted to handle the
installation of the TerraMesh™ System.
Client:
Contractor:
BRITISH COLUMBIA MINISTRY OF TRANSPORTATION
MACCAFERRI CANADA LTD.
GABLE CONSTRUCTION / GABION™ WALL SYSTEMS
TERRAMESH™ 96 m
07/2018 - 08/2018

111
110
Just before 6 a.m. on September 20th, 2017
Hurricane Maria a Category 5 with violent winds
slammed into the island demolishing the FAA
Doppler Radar Dome and ripping it from its
mountings. Hurricane Maria and its 190 km/h
winds demolished this radar that forecasters and
mariners used to monitor storms and navigate the
Caribbean Sea. The radar was critical to determining
rain intensity and path, which was vital to residents
of the island, especially during hurricane season. A
huge void had been left between Antigua and Cuba
with no available radar in the eastern Caribbean Sea.
The access road to the radar location experienced
a landslide failure due to the mountainous terrain
and extreme precipitation of up to 963mm that
accompanied the hurricane. Impassable roads and
bridges across the island would make the initial
access to site and damage assessment difficult.
Cayey ACCESS ROAD DOPPLER RADAR CAYEY
PUERTO RICO
Recovering after hurricane Maria
2021
Cayey, Puerto Rico
3
Our Solution
It was determined that a Mechanically Stabilized
Earth(MSE) Rock Faced TerraMesh™ wall system
was an ideal solution for this cut slope construction.
This system of retaining wall has successful
historical use in similar slope failures all across the
island.It consists of a rock filled wire facing unit with
dimensions of 2.4 m high by 0.8m deep, and a length
along the front face of 2.7 m. Rockfill is comprised
of size ranges of 100 mm to 200 mm. The coarser
facing rockfill is separated from the structural
backfill by use of a nonwoven geotextile(Mactex™
N47.1).The facing mesh is comprised of a double
twist(DT) wire mesh, along with PoliMac coating for
durability and longevity of the structure. The depth
of burial in front of the wall is approximately 1.5 m,
which is important when founding a wall on a sloping
toe.All units are connected during installation to
achieve the design intent of a monolithic mass
retaining wall facing. The primary soil reinforcement
noted at the base of the wall overlaps with the DT
mesh on the lower return.The soil reinforcement
is comprised of a WG11 uniaxial geogrid with an
ultimate tensile strength of 110 kN/m. Geogrid
lengths of 7 m are noted to extend to the cut slope
face to ensure continuous soil reinforcement to the
stable bank excavation.
Client:
Contractor:
FEDERAL AVIATION ADMINISTRATION
MACCAFERRI IN HOUSE DESIGN SERVICES
MELENDEZ CONTRACTORS
TERRAMESH™ 290 m2
08/2021 - 09/2021

113
112
Hajj Committee constructed a Hajj house in Calicut,
Kerala; near the building, there was high level
difference between finished levels and the existing
ground levels, varying from 8 to 13 meters along
with an exposed rock at the existing ground level.
As a temporary arrangement, soil was dumped
on it. The dumped soil started to slide at various
locations. Therefore, in order to protect the slope,
a suitable retention measure was essential. The
soil in the surroundings is lateritic in nature. In
a place like Kerala where monsoons have heavy
rains for continuous 3-4 months, there were
many chances of reduction of strength (especially
cohesion) for lateritic deposits. Lateritic soil has a
complex characteristic of high shear strength in
dry conditions which reduces drastically when in
contact with water. Flexible structure with enough
permeability to dissipate the excess pore water
pressure, that may develop in retained fill, were the
ideal solution.
3
RETENTION WORKS FOR HAJJ HOUSECALICUT,
KERALA, INDIA
A Flexible structure with enough permeability to dissipate the excess pore water pressure
2011
Calicut, Kerala, India
Calicut
Client:
Contractor:
HAJJ COMMITTEE, KERALA
MACCAFERRI ENVIRONMENTAL SOLUTIONS PVT. LTD
NIRMAAN CONSTRUCTION PVT. LTD
02/2011 - 05/2011
Our Solution
Considering the heights to be retained, expected
loads, site constraints and client requirements,
Maccaferri proposed a Paramesh System which
is very quick and easy to construct. Paramesh
system consists of TerraMesh™ (Gabion™ facia
units with an integrated double twist mesh) as
secondary reinforcement and Paralink™ (geogrid)
as a reinforcing element. Mactex™ N (Non-woven
geotextiles) were used behind the Gabion™ facia
units in order to act as a separator and filter, which
allowed free movement of water and prevented
backfill soil from entering in the voids between stone
filling with TerraMesh™ facia. With Maccaferri’s
solution, client had to spend only half the costs
when compared to a conventional alternative
like a RCC wall. Simple drainage arrangements
were provided on top of the slope and within the
structure to cater to anticipated heavy pore water
pressure.

115
114
FCF Minerals Corporation, is a mining company,
engaged in the exploration, development,
and commercial operation of mineral claims.
FCF Minerals Corporation operates gold and
molybdenum minerals exploration in Runruno,
Quezon, Nueva Vizcaya, Philippines. In 2016, in
the mine a 40 meters-wide emergency spillway
had to be designed to support the residual storage
impoundment (RSI) earth dam of the mining
company. For the project, a practical and economical
design of the raised spillway was required. The
design had to be able to maximize the use of
existing soils in the project site.
Runruno
FCF MINERALS SPILLWAY
A solution to support the residual storage impoundment (RSI) earth dam of the FCF mining company
2017
Runruno, Nueva Vizcaya, Philippines
3
Client:
Contractor:
FCF MINERALS CORPORATION
GHD PHILIPPINES
06/2016 - 03/2017
Our Solution
The Project Consultant, GHD Philippines, designed
a raised spillway for the customer. The said spillway
was composed of a series of weirs to retard
the flow velocity of the water in the hydraulic
structure; for this reason, Maccaferri’s TerraMesh™
System combined with Gabion™s were designed.
TerraMesh™ units were mainly used for the
construction of weirs, while Gabion™s were used to
support both sides of the spillway structure as well
as for the lining of the bottom width of the spillway.
The cascading steps and landing portions of weirs
were capped with concrete for abrasion protection.
Some portions on the sides of the spillway were
reinforced with Maccaferri’s Macgrid™ woven
polyester geogrids to maintain stability. All backfill
materials behind the TerraMesh™ units (along the
main line of the channel) and those for the reinforced
soil walls have been required to be compacted to a
minimum 95% of MDD by Standard Proctor.

117
116
An extension of the existing provincial road has
been planned by Atimonan One Energy, Inc. (A1E)
- a wholly owned subsidiary of Meralco PowerGen
Corporation. AIE is the developer of an environment-
friendly and state-of-the-art 1,200-megawatt
supercritical coal-fired power plant in Atimonan,
Quezon Province. The plant is expected to augment
the power supply in the Luzon grid when it starts
commercial operations. To provide access to the
power plant, as well as to improve the road network
in the town of Atimonan, the existing provincial
road needed extension. As challenges are inevitable
to every project, A1E engineers required cutting
of rock outcrop and backfilling on the shoreline
to construct the access road with its required
elevation and geometry. Due to space constraint, a
160 meters long section of the shoreline required a
revetment wall from STA 0+980 to STA 1+140, with
average total height of nine meters.
ATIMONAN-MAUBAN PROVINCIAL ROAD
A longitudinal protection revetment structure with TerraMesh™ System
2017
Atimonan - Mauban, Philippines
3
Client:
Contractor:
MERALCO POWERGEN CORPORATION (MGEN)
GHD PTY. LTD.
WAYCON BUILDERS & CONSTRUCTION SUPPLY
03/2017 - 11/2017
Our Solution
Based on the data provided by the A1E engineers
and in cooperation with Project Consultant (GHD
Pty. Ltd.), Maccaferri recommended a longitudinal
protection revetment structure following the
concept of mechanically stabilized earth (MSE) and
with the patented TerraMesh™ System product. The
design has been proven to be structurally sound
and economical and has met the tight construction
schedule for the project. The reinforced structural
backfill of the MSE wall was required to be
compacted to minimum 95% of MDD by Standard
Proctor. A buttress and scour protection using
large-sized boulders was required at the toe as
primary defence against waves.
The base of MSE wall was laid with Reno mattress
for stabilization. Due to the sandy nature of the
fill materials, the sub-surface drainage system
in between the reinforced structural backfill and
that of the cut soil surface was not required by the
Consultant. The combined polymeric coating and
Zinc+5%AIuminum provides optimum corrosion
and abrasion-resistant protection to wires of
TerraMesh™ System units. During construction,
the MSE wall was tested by a local typhoon that
flooded the town of Atimonan, Quezon, but the
MSE wall remained still and without any damage.
Atimonan
Mauban

119
118
Kanawa is located in the North of Ambon Island,
Maluku Province of Indonesia. Some areas in the
vicinity of the Governor’s property were prone
to sliding and had already experienced shallow
landslides during the rainy season. The objective
of the Client was to stabilize the area using an
environmentally friendly solution which could
have given a “green touch” to the landscape.
The total unstable soil height to be retained was
approximately 10 m. The main technical constraint
of the project was the presence of a small river
discharging directly at the toe of the slope to be
retained. The water was falling straight at the toe
of the slope with an uncontrolled hydraulic jump
of approximately 10 m. It was therefore important
also to mitigate the water falling energy in order not
to erode the new construction and to protect the
slope against erosion.
3
Client:
INDONESIAN MINISTRY OF PUBLIC WORKS
07/2015 - 12/2015
Our Solution
The Public Works Department decided to build a
Reinforced Soil Slope as retaining structure and
a Gabion™-made drop structure to dissipate the
energy of the outflowing water. Maccaferri Team
designed the solutions using the in-house tools and
software (MacStars W 4.0). The proposed solution
consisted of a retaining structure combining
TerraMesh™ Systems at the bottom (the first 6
m) and a 5m-high TerraMesh™ Green retaining
structure on top of that. The channel drop structure
was entirely made with Gabion™s and Reno
Mattresses. As channel bed, at the bottom of the
retaining structure, Reno Mattresses were used
to limit the erosion potential of the water flow.
All the Double Twisted products used were Heavy
Galvanized and PVC coated for a higher durability
in river applications (as per BS-EN 10223:3-2013).
All the stability checks have been carried out using
Maccaferri internal software. After construction,
the drop structure experienced some severe
floods mixed with debris. The drop structure and
the channel were not damaged thanks to the high
strength of the materials used as well as they high
quality coatings. Reno Mattresses and TerraMesh™
System have shown to be a valid alternative to
traditional lining systems and retaining structures
used in Indonesia (rip-rap or masonry walls).
Kanawa
KANAWA SLOPE AND RIVER PROTECTION
A green and safe “touch” for Kanawa
2015
Kanawa, Maluku, Indonesia

121
120
Nickel Laterite Project is a Nickel Smelter that
located in Obi Island, North Maluku, Indonesia. New
Smelterisplannedtobebuilttoincreasethecapacity
of Nickel production. The client’s purpose of this
retaining wall structure is as a base foundation able
to withstand the load for new Smelter construction.
Soil Retaining structures are varied from 5 m to
20 m in height. The area is characterized by a high
seismic level and a horizontal seismic acceleration,
equal to 0.25 g, had to be considered during the
design process.
3
Client:
Contractor:
JINCHUAN GROUP INTERNATIONAL RESOURCES Co. Ltd
06/2017 - 01/2018
Our Solution
As the Client needed a solution that not as
expensive as the traditional concrete retaining
structure, Maccaferri proposed Paramesh System
as a solution . Paramesh system is a retaining
wall structure which is flexible, environmentally
friendly, and cost-effective; especially if compared
to traditional concrete structure. Paramesh
system is a mechanically stabilized earth type
soil retaining structure; it consist of a Primary
reinforcement using Geogrid, followed by a
secondary reinforcement of a TerraMesh™ made of
double twisted wire mesh 8x10 with a coating of
Galvanized and polymer steel wire, Mactex™ non-
woven geotextile behind TerraMesh™ facia unit
as separator, and a Macdrain™ as Geocomposite
drainage to drain water from soil embankment.
Finally, all Stability checks of the structures in
static and seismic conditions were performed
using Macstar, an internally developed software by
Maccaferri. Our solution does not require specialist
contractor or labourer for construction and quality
control on site is also always strictly monitored by
Maccaferri Product assistance.
Obi Island
PARAMESH WALL (MSE WALL) AT NICKEL
LATERITE SMELTER
A base foundation able to withstand the load of the new Smelter construction
2018
Obi Island, North Maluku, Indonesia

123
122
Ciputra, one of the biggest property developers in
Indonesia, faced erosion issues for one of their new
projects in Cibubur, West Java. Located not so far
from the river, Ciputra needed to protect the access
road from erosion and build the slope protection
before a landslide came off and harmed the area.
The high chances of a landslide were due to the
combined action of the water flow and the heavy
rainfalls saturating the clay soil of the slope. Rapid
countermeasures to guarantee the safety of the
housing area were mandatory.
3
Client:
06/2017 - 09/2017
Our Solution
Maccaferri as slope protection specialist provided
a cost-effective, environmentally friendly, and
tailored solutions for the client’s problems. A 3.5
m high Gabion™-made retaining wall was used;
the stability of mass gravity retaining walls relies
upon the structural integrity of the units and their
filled mass supports unstable earth slopes. In
addition, as scour protection of the Gabion™ wall,
Reno Mattresses® were placed at the toe of the
gravity structure. A 7 m high of TerraMesh™ on
the top of the structure was used as a reinforced
slope to make the slope more stable. Maccaferri
suggested TerraMesh™ because it combines the
flexibility of soil reinforcement with the benefit of
a modular system. Completed with Macgrid™® WG
15 as the primary reinforcement, it enables the soil
to perform better than it would in its reinforced
state and accommodate greater loads as well as
stand at steeper angles. Soil slopes are subject
to continuous erosion forces, whether natural
or caused by man. For that reason, some form
of erosion control was required. Maccaferri used
MacMat® for the long-term erosion control to
facilitate the reestablishment of vegetation on the
slope. MacMat® is very helpful to decelerate the
water flow during rainfall. All the stability checks
were performed using the internally developed
Maccaferri software (MacStars® W). The retaining
structure stability was checked under both static
and seismic conditions. Furthermore, the stability
during soil excavation and construction phases
had been verified. The construction works of the
retaining wall lasted around 4 months.
Bekasi
RIVER BANK PROTECTION AT CITRAGRAN
CIBUBUR
An environmental friendly solution to guarantee the safety of the Ciputra housing
2017
Bekasi, West Java, Indonesia

125
124
Sampoerna Academy is an international school
located at Sentul City, West Java, Indonesia. Sentul
has a hilly topography, so the sport field of the
school was constructed on a flat land as a result
of slope cutting. Thus, the need of slope protection
near the facility was required. The surrounding
slopes around the field needed to be protected from
the potential landslide and erosion. The slope which
has sandy clay type of soil required protection
from landslide and future erosion created by
rain and surface water flow. The selection of the
right solution is necessary to prevent failure by
the presence of water. MSE Wall (TerraMesh™
Green ) by Maccaferri was selected considering its
flexibility and its ability of free drainage, allowing
water to flow through the facing, and mitigating
the excess pore water pressure of the structural
fill. Furthermore, TerraMesh™ Green was chosen
to be the facing / secondary reinforcement of MSE
Wall considering its ability to grow vegetation (LCC
– Legume Cover Crop).
3
Client:
Contractor:
TERRAMESH™ GREEN 4,000 pcs - MACGRID™ WG 8,000 m2
06/2017 - 09/2017
Our Solution
MSE Wall structure by Maccaferri consists of
TerraMesh™Green andMacgrid™WG15(Geogrid)as
the main reinforcement. TerraMesh™ Green , that is
fabricated from Galvanized (Zn) and PoliMac coated
steel wire, acts as the secondary reinforcement or
facia and Macgrid™ WG 15 (Geogrid) as the primary
reinforcement, both works systematically along
with the Well-Compacted Structural Fill to create
a stable retaining wall structure. There is also
Geotextile Non-Woven that works as a filtration
layerbetweenTerraMesh™Green andStructuralFill,
allowing water to flow out without carrying any soil
particles. Macdrain™ W 1061 (Drainage Composite)
works as subdrain layer between Structural Fill
and Existing Backfill, providing a drainage for any
incoming water from the rear of the structure.
TerraMesh™ Green is chosen to be the facing due
to its resistance to corrosion with the presence of
PoliMac coated wire mesh that provides additional
protection to the structure. TerraMesh™ Green is
also considered to be the best solution because it
is an environmentally friendly modular system used
for soil reinforcement that permits a vegetative
cover to be established rapidly.
SAMPOERNA ACADEMY TERRAMESH™ GREEN
An environmentally friendly modular system solution for soil reinforcement
2017
Bekasi, West Java, Indonesia
Bekasi

127
126
3
On September 26, 2009, the Philippines were
devastated by a tropical storm Ondoy (or Ketsana,
international name), with a record-breaking amount
of rainfall that left damages on agriculture, lives, and
properties in affected regions. One of the hardest
hit areas was the province of Rizal; in the area the
Sun Valley Subdivision, a residential community
located in the mountainous landscapes of Antipolo
City, Rizal was seriously affected. Typhoon Ondoy
caused a landslide of about 15 meters in height
below a portion of its major service road.
Our solution
After soil investigation and analysis, Maccaferri
engineers designed a mechanically-stabilized
earth (MSE) wall system composed of TerraMesh™
System units and Gabion™s. The structural integrity
of the MSE wall was verified using Maccaferri’s
internal design software and was approved by
the contractor’s (Piedras Negras) engineers.
TerraMesh™ units and Gabion™s provided a
porous facing, and naturally blends with the green
landscape of Sun Valley.
Client:
Contractor:
PIEDRAS NEGRAS CONSTRUCTION AND DEVELOPMENT CORPORATION
PIEDRAS NEGRAS CONSTRUCTION AND DEVELOPMENT CORPORATION
TERRAMESH™ 3,750 pcs - GABION™ 630 pcs - MACTEX™ 4,170 m2
01/2010 - 02/2010
SUN VALLEY SUBDIVISION
The recovery of sun valley subdivision after storm ketsana
2010
Antipolo City, Rizal, Region IV-A, Philippines
Antipolo City

129
128
Minera Barrick Misquichilca, one of the leading
companies in gold exploration and exploitation,
with the Lagunas Norte project, located in Alto
Chicama, department of La Libertad, had the need
to build a wall of soil reinforced 22.5 m high to
generate an access platform for mining trucks. The
problems that a wall of this height could generate
required the use of a resistant and flexible system
capable of withstanding the thrusts generated by
themselves, by the loads imposed by the mining
trucks and by the high seismic acceleration of the
area. The company Graña y Montero, executors
of the project, contacted Maccaferri to propose a
design for the structure.
Santiago
de Chuco
PRIMARY CRUSHER, LAGUNAS NORTE PROJECT
A flexible system capable of withstanding higher loads
2005
Santiago de Chuco, La Libertad, Peru
Client:
Contractor:
ING. GERMAN VIVAR
TERRAMESH™ 25.5 TON - PARAGRID™ 7,605 m2
10/2004 - 02/2005
Our Solution
A soil wall reinforced with TerraMesh™ System
was proposed, since the flexibility of the system
was ideal for this project. The design was made
by Maccaferri . The design was carried out with
the help of the program MACSTARS 2000; for
the proposed solution it was necessary to use of
TerraMesh™ units with additional reinforcement
of high resistance polyester geogrids Paragrid™
200/15, reinforcement density was designed with
the program mentioned. The wall was founded on
a fill with compaction controlled; the structural fill
material was rigorously selected and compacted up
to 95% of Modified Proctor. On-site quality control
was strictly monitored by the technical team of
Maccaferri. The construction lasted 4 months with
the work of the not high qualified labor from the
adjacent communities in the area of influence of the
mining project.
3

131
130
Kaliapni Chromite mines of Balasore Alloys Ltd.
is situated in the state of Odisha and performs
extraction of chromite. At present it has two plants
with a total capacity of 160,000 MTPA. In open cast
mines, the excavated waste material is dumped
on the slopes. Hence, slope stability of overburden
dumps is integral to the mine operations. Waste
dumps have steep slopes due the waste being
tipped over from the top of the dump. These
unstable slopes along the roads to the mines are
prone to subsidence, which can become a safety
hazard and affect accessibility to mines. The
heavy machinery and dumping trucks implanted
for the extraction and transportation of materials
add to the slope instability. Client was looking for
innovative solutions for stabilizing the OB dump
with suitable slope protection/retention system.
PARAMESH WALL AT KALIAPANI
CHROMITE MINES
A Paramesh wall designed to support the live load of heavy trucks
2018
Kaliapani, Jajapur, Odisha, India
Kaliapani
Client:
Contractor:
BALASORE ALLOYS LTD
DGMS
Z-TECH INDIA
TERRAMESH™ 2,415 pcs - TERRAMESH™ GREEN 4,325 pcs
PARALINK™ 63,900 m2
- MACDRAIN™ 16,500 m2
04/2015 - 07/2018
Our Solution
Reinforced soil wall was considered as an ideal
solution. Paramesh wall system consisting of
TerraMesh™ (Gabion™ facia units with an integrated
double twist mesh) fascia and Paralink™ (geogrid)
as a reinforcing element was installed. The
Paramesh wall is built around the OB dumps for
the stabilization purpose. The maximum height of
the wall is 31m. The wall is designed to support
the live load of the heavy trucks used at the facility.
The truck’s payload exceeds 22kPa. The main
advantages for selecting the above solution were:
1. Flexibility:Flexibilityofsystemhelpsthestructure
to accommodate differential settlement without
any compromise in structural integrity.
2. Simplicity in construction: The construction
is simple and fast. It does not involve deep
excavation, dewatering of trenches and erection
of formwork.
3. Cost-effectiveness: The total cost of Gabion™
fascia solution is less than rubble wall and R.C.C.
wall. Also, minimum foundation is required.
4. Permeability: The ability to combine drainage and
retention functions makes it an ideal structure.
5. Environmentally friendly: The system allows
vegetation to grow through it. This further
stabilizes the slope.
3

133
132
The project is located on the right of section
K38+325~K38+485 of the expressway from
Shaoxing to Zhuji. Because of the limited space,
the right side of the provincial road is close to the
Shaoda highway. This solution also provided slope
protection, saved land acquisition, and avoided the
reconstruction of the old road. The project required
a steep slope scheme with a slope as high as 9.88m.
The project is located in a hilly area, with slightly
undulating terrain. The ground is formed by shallow
accumulation of thick layer of alluvial soil, with
brecciated silty clay and clay containing gravel,
between 9.8~15.1 m thick; with a bearing capacity
of the foundation of 180-220kpa. The underlying
bedrock lithology is grey-green, cyan gray
sandstone and tuff, and the buried bedrock depth
is shallow. The local structural development of this
section is seriously affected by the structure, and
the rock mass fractures are densely developed, all
in addition to a strong weathering. According to the
engineering geological conditions and engineering
requirements of the project, it was decided to use
TerraMesh™ Green steep slope. The reinforced
steep slope shrunk the foot of the subgrade slope,
saved earthwork, reduced land occupation, and
avoided the reconstruction of the old road provincial
road Shaoda line. At the same time, the safety and
stability of the structure and the roadbed were
increased.
Shaoxing
ZHEJIANG SHAOZHU HIGH-SPEED GREEN
REINFORCED GABION™ RETAINING WALL PROJECT
An environmental friendly and economic solution for a limited space area
2010
Shaoxing, Zhejiang Province, China
3
Our Solution
The project was implemented in August 2010. The
main construction process of reinforced soil steep
slope was as follows: installation of foundation
construction components, which consisted of earth
filling and rolling.
After the reinforcement was laid, the soil filling
started from the middle of the tensile reinforcement
along the parallel wall gradually to the two ends of
the filling, in order to ensure the uniformity of the
tensile stress and to not squeeze the deformation
of the tensile reinforcement to the wall, causing the
wall tensile relaxation. Completed the soil filling,
the soil was laminated by rolling, to ensure that the
ground filling surface was flat. For the filler near
the surface slope, light compaction machinery was
used to ensure its compacting degree because the
large roller couldn’t be within 1m of the wall.
In the construction process of slope, the control
of compaction degree is very important and
it’s tested according to the relevant standards
to ensure the quality of the project. During the
construction process, the green reinforced Gabion™
structure on the right embankment of K38+353
and K38+396 was also monitored. The monitoring
content included horizontal earth pressure, vertical
earth pressure, strain of reinforcement material
and average strain of reinforcement body. The
monitoring results showed that the horizontal
earth pressure after unloading of the slope was
very small, with maximum value of 4kPa. Due to the
restriction of reinforcement, the lateral deformation
of this structure is small, with a maximum value of
17mm, and occurs at 1/3H (H is the slope height).
Moreover, structural deformation mainly occurs
at the construction stage, and the deformation
basically stops after the construction.
Client:
Contractor:
SHAO ZHU HIGH-SPEED CONSTRUCTION HEADQUARTERS
ZJIC (ZHEJIANG PROVINCIAL TRANSPORTATION PLANNING AND DESIGN INSTITUTE)
ZHEJIANG COMMUNICATIONS CONSTRUCTION GROUP
- MAC DRAIN® 500 m2
08/2010 - 10/2010

135
134
The Qingshui River Flood Control Dike Project is
one of key construction projects in Jianhe County
to create an ecological and livable environment.
The flood control embankment stretches for 7.5
kilometers from both sides of the river in Chuandong
Village to Zhanjiajiang Village.
The river has a width of 200-450 m, the river valley
is a symmetrical “U”-shaped valley on both sides,
has a gradient of less than 1.1%, and a relatively
slow water flow. The concave side (right side)
eroded and formed deep grooves, while the convex
side (left side) had a large amount of flood retention,
and a seriously silted river channel.
The flood control infrastructure in this section of
the river was weak and the flood control capacity
was poor.
Every year a heavy rainfall produced rapid rise in
water levels and washed the riverbank with sand
and pressure, which damaged fertile fields, flooded
residential areas, and suffered disaster every year.
However, in the economically developed and
densely populated areas of Jianhe County, where
the river passes, its geographical location and
socioeconomic status are very important.
The existing flood control capacity couldn’t meet
the needs of social and economic development.
3
Jianhe County
GUIZHOU QINGSHUI RIVER REVETMENT
PROJECT
Creating a more ecological and livable environment
2014
Jianhe County, China
Our Solution
TheleftbankoftheQingshuiRiverFloodControlDike
(Gedong Section) and the section from the highway
intersection to the exhibition stand was mainly
filled with embankments. Following the principle
of “no damage and less damage is the greatest
protection”, the land occupation was reduced. After
comparison and inspection of multiple schemes,
the final decision ended up being the TerraMesh™
system combined with MacMat as slope protection
and Reno Mattress as foot protection. The elevation
of the top of the wall was set at the 2-year flood
level, and a hydrophilic platform was set here. The
slope ratio of the retaining wall was 1:0.25. The
TerraMesh™ wall from the top of the slope adopts
the ecological slope protection of MacMat R, and
the slope ratio is 1:2. A 30 cm thick Reno mattress
was laid in front of the steps in the middle of the
TerraMesh™ wall and in front of the wall to prevent
erosion. A Polyester long-fiber non-woven filter
was laid behind the TerraMesh™ wall and at the
bottom of the Reno Mattress.
The part of river section on the right bank of
the Qingshui River Flood Control Dike (Gedong
Section) eroded and with deep troughs was directly
supported by TerraMesh™ system wall, and the
upper slope was protected with MacMat R and
Reno Mattress for ecological slope protection.
Client:
Contractor:
JIANHE COUNTY WATER CONSERVANCY BUREAU
VTHOU QIANDONGNAN PREFECTURE WATER CONSERVANCY AND ELECTRIC
POWER SURVEY AND DESIGN INSTITUTE
HUNAN HENGCHU CONSTRUCTION CO,LTD
TERRAMESH™ SYSTEM 6,000 pcs, RENO MATTRESS 10,000 m2
01/2013 - 12/2014

137
136
In the past, the Yueyang region faced the risk
of power shortage. With the development of
economy, the power load of the whole province
kept increasing. The goal of the project was not only
to make the electricity consumption of Yueyang
region more reliable but also to make the power
grid structure of the whole province stronger, even
by providing strong power support for the economic
take-off for the whole province. After the site of the
proposed station site was leveled, higher artificial
fill slopes were formed on the northeast side of the
site and in the valley section of the west central
part, with a maximum fill height of 30 cm. Due to
the requirements of the layout of the general plan,
there was not enough space for grading treatment
at high slopes, and greening treatment was also
required, and traditional concrete retaining walls
were not suitable for such high fill slopes. The slope
couldn’t be supported in a timely and effective
manner, and there was a risk of uneven settlement
and slump. The customer unit needed to find a
technically feasible, economical and reasonable
solution.
Yueyang
YUEYANG 550KV POWER STATION
TERRAMESH™ PROJECT
A stronger power grid structure for the whole province
2021
Yueyang, China
3
Our Solution
and engineering requirements of the project,
the owner and the design unit comprehensively
considered the economy, ecology and the overall
force of the retaining wall and finally decided to
adopt the TerraMesh™ retaining wall solution.
The retaining wall is composed of TerraMesh™
Green , TerraMesh™ system and Paragrid™. The
main reinforcement of the reinforced soil adopts a
high-strength fiber-plastic grid of 150~200 KN/m.
The TerraMesh™ Green panel is composed of
steel mesh panel, steel skeleton and geotechnical
pad. The TerraMesh™ system adopts galvanized
and high wear-resistant organic coating double-
stranded hexagonal metal mesh as the face wall,
which is set at the bottom of the structure to resist
erosion. The interior of the reinforced Gabion™ wall
is filled with stones, and the stones come from the
waste stones after excavation of the slope (to meet
the corresponding requirements); the structural
fill is also made of weathered rocks and gravel
slag after excavation (to meet the corresponding
requirements). The material is used to save the
project cost to a large extent. The maximum design
height of the retaining wall is 22.65 m, and the slope
form: from top to bottom, step by step, with a 2m
wide horse track set at each level. The TerraMesh™
Green wall can be planted and greened by spraying
and the slope ratio is 1:0.4. The slope body is
reinforced with fiber-plastic grating, and the length
of reinforcement is 11 m, 15 m, 18 m and 16m in
sequence.Thefoundationofthereinforcedsoilslope
is strongly weathered sandy slate. The drainage in
the slope body is carried out by using the Macmat
drainage pad after a reinforced soil combined
with the gravel drainage layer at the bottom.
Client:
Contractor:
STATE GRID HUNAN ELECTRIC POWER CO., LTD.
CHINA ENERGY CONSTRUCTION GROUP HUNAN ELECTRIC POWER DESIGN INSTITUTE CO., LTD.
CHINA ENERGY CONSTRUCTION GROUP HUNAN ELECTRIC POWER DESIGN INSTITUTE CO., LTD.
TERRAMESH™ GREEN 170 pcs, PARAGRID™ 87,525 m2
11/2021 - 12/2021

139
138
Big projects, with dimensions between 5,000 and
10,000 m² of surface and heights up to 20 meters.
During the design and execution phase further
geotechnical and / or stability analyses were necessary;
some projects also required particular attention in the
drainage capacity of the structure.
ENGINEERING
CHALLENGE
2
1 3 5
4

141
140
This project has implied reinforced soil wall
design, material supply and installation. The main
contractor was Bechtel Enka general partnership.
Bechtel Enka joint-venture completed Kosovo’s
first two motorways – Route 6 and Route 7. Route
6 Prishtine – Hani i Elezit is an integral part of road
corridor which connects capital cities, Prishtine and
Skopje (FYR Macedonia). The aim was to create a
transportcorridorfromKosovo’sborderwithAlbania,
via its capital, to its border with North Macedonia.
The four lane motorways are an essential part of
Kosovo’s national roads network. Other than the
local key connection the motorways link also joins
in with a major pan-European transport corridor,
Corridor X, that connects Salzburg in Austria with
Thessaloniki in Greece, crossing Slovenia, Croatia
and Serbia, unleashing trade opportunities with
the rest of Europe. The improved connectivity that
the motorways bring to the Western Balkans and
Western Europe is decisive for growth and jobs and
will bring clear benefits for the region’s economies
and citizens. Furthermore to make the challenge
harder the walls have been built in a seismic and
mountainous area for a total of more than 13,800
sqm of reinforced soil facing.
Our solution
Mainly, seven Paramesh system walls have been
built: WL 015, WL 024, WL 060, WR 131, WR 134,
WR 139, WR 406. The main products used are
TerraMesh™ System 3x2x0.5 and 3x2x1, Mactex™
H35.1, Paralink™ 500, Paralink™ 300 and Paragrid™
150. The project also included Gabion™s walls, soil
nailing with MacMat and rockfall protection. Most
of the walls comprises of box culverts at the bottom
for the runoff of water. The maximum height of the
reinforced soil walls is nearly 25 meters.
Prishtine KOSOVO MOTORWAY PROJECT
Local key connection to Europe
2018
Prishtine, Kosovo
4
Client:
Contractor:
REPUBLIC OF KOSOVO, MINISTRY OF INFRASTRUCTURE
TEMPUS PROJECT LTD.
BECHTEL ENKA GENERAL PARTNERSHIP
08/2017 - 10/2018

143
142
The 670 km Egnatia Odos motorway is one of
the largest and most ambitious civil engineering
projects in Greece. The motorway runs across
Northern Greece from east to west. It starts at
Igoumenitsa and travels across the Prefectures of
Thesprotia and Evros, to the village of Kipi on the
Turkish border. On the Anthohori-Metsovo section
of the new motorway, the alignment passes through
some challenging topography. The mountainous
territory required numerous tunnels, viaducts and
embankments to be constructed. On this particular
section a 50 m high structure was required to carry
the highway into a tunnel section. The solution also
had to have a minimal environmental impact with
as small as possible land take. This section of the
construction was awarded to contractor J&P Avax.
EGNATIA-ODOS
4
REINFORCED SOIL SUPPORTS NEW
A2 MOTORWAY
One of the largest and most ambitious civil engineering projects of Greece
2006
Egnatia-Odos, Anthohori, Greece Client:
Contractor:
MINISTRY OF INFRASTRUCTURE TRANSPORT & NETWORKS
MACCAFERRI
J&P/AVAX
- PARALINK™ 120,000 m2
- GABION™ 990 m2
06/2003 - 10/2006
Our Solution
Maccaferri assisted the project team by providing
feasibility studies, geotechnical design and on-site
support services for the 50 m high embankment.
The embankment was divided in two parts: the
Lower 30 m – with a 3 x 10 m high cut slopes
with intermediate terraces and the Upper 20 m
a reinforced soil embankment founded upon the
cut slopes beneath. The lower terraced slopes
were cut from the existing ground profile and
were provided as foundation for the reinforced
soil embankment above. These cut slopes were
protected by MacMat® R to prevent erosion
and promote the establishment of vegetation.
The 20 m embankment above was constructed
from a Maccaferri TerraMesh™ and Paralink™ soil
reinforcement ‘hybrid’ system. Paralink™ geogrids
with an ultimate tensile strength of 400 kN/m were
used as primary soil reinforcement.

145
144
YAPIYOL ALTYAPI İNŞAAT SAN. VE TİC. A.Ş
MACCAFERRI TURKEY
YAPIYOL ALTYAPI İNŞAAT SAN. VE TİC. A.Ş
09/2017 - 05/2018
The Kozcagiz Water Dam project is one of the
biggest water related investments by DSI in the
Bartin province, providing water to a total of 24.600
decares of agricultural area. The dam construction
consists of clayish sand-gravel backfill and ends
up in a total height of 54 meters. The aim of the
Kozcağız Dam is the constant water supply of
the agricultural Bartin region and additionally
the protection of the region from floods and
resulting damages. In scope of the Kozcagiz Dam
project an additional construction of berms was
required. Since the bottom section had to be
permanently located under water, the berm type
and supporting geosythetic materials were crucial
for the successful and long-term stabilization of the
system. Furthermore, in the foresight of possible
instabilities and settlements of the ground, the
system needed to perform on a high level.
KOZCAĞIZ DAM RELOCATED ROAD PROJECT
A long-term stabilization for the Kozcagiz Water Dam
2018
Bartin, Karadeniz, Turkey
Bartin
4
Our solution
To face these challenges a TerraMesh™ system
had been designed. For the TerraMesh™ system of
the Kozcagiz Dam project, planary reinforcement
materials with a high tensile strength in one
direction and composite geosynthetic stripes were
used. Regarding the settlement problems, a piling
platform was constructed as base of the berm to
stabilize the system. TerraMesh™ System berms
were used with Doubletwisted Wire Mesh to
provide a long-term service life; they had been also
filled with hard rocks and supported by geosynthetic
reinforcements.
This elastic system responds to the latest
architectural requirements for retaining walls and
faces problems like settlement successfully.
Client:
Contractor:

147
146
The Artvin Dam is a dam with an arch-gravity
architecture on the Çoruh River in Artvin Province,
Turkey. The dam was built to produce hydroelectric
energy and its power station has an installed
capacity of 340 MW.
The Artvin Dam was built 30 km from Yusufeli,
under the contractor of Doğuş İnşaat A.Ş. Due to
the construction of the dam the Demirkent village
road, that was situated below the water level of
the current Artvin Dam Lake, had to be flooded,
which arose the need of the construction of a new
road, above the level of the newly formed basin.
On the slope, which is generally made up of slope
rubble, walls with a height of up to 25 meters were
needed. Alternative retaining systems had to be
used in this geography since the classical retaining
system solutions were not possible due to the flow
of groundwater from the slope depending on the
season.
ARTVİN DAM TERRAMESH™ SYSTEM
WALL APPLICATION
Our design for the embankments of the Demirkent village road
2015
Artvin, Karadeniz, Turkey
Artvin
4
Our solution
Geosynthetic reinforced TerraMesh™ System
retaining walls were chosen in the design of the
embankments of the Demirkent village road in
the area between the T7 and T8 tunnels, due to
its flexibility, its drain-allowing structure and its
economic advantages. Due to the high performance
of this hybrid structure, which consists of a
combination of geogrids and double-twisted
wires, against deformation and settlement, it has
been frequently used in reinforced embankment
structuresexceeding15m.ThisTerraMesh™system
retaining walls, which is the first application of its
kind on highways, were designed by Maccaferri.
During the design, the tunnel mat was used during
the construction of the walls designed on the
assumption that the backfill will be made with
borrow material. The ground where the walls sit is
slope rubble, and the wall foundations were placed
on solid ground by digging. In this project, a total
of 8 walls were built and a total of 11,010 square
meters of TerraMesh™ system wall, supported with
Paragrid™, had been fabricated.
Client:
Contractor:
DSİ GENEL MÜDÜRLÜK
MACCAFERRI
DOĞUŞ İNŞAAT A.Ş
05/2014 - 02/2015

149
148
Zagreb – Split - Dubrovnik Motorway will be part
of the Adriatic - Ionian Motorway. The motorway
will be combined with the continental and Adriatic
corridor, and it joins the Adriatic and the Aegean
Sea. Alternatively, the infrastructure also connects
the west European regions to the southeast Europe
and Middle East. Lastly, the motorway links all
Adriatic coastal areas and ports of the Republic of
Croatia.
The section Tunnel “Sveti Rok” - Maslenica on
motorway Zagreb –Split in Croatia passes through
difficult mountain topography. On this section,
which is 15 km long, the motorway descends from
the altitude of 510 m to 90 m and alsocontains 3
tunnels and 4 viaducts. The terrain very steep and
on 3 locations the cuttings are up to 50 m at one
side of the road while the opposite side is on the
embankment. In particular,on two of the locations
where embankments had to be builtthe inclination
of the terrain was up to 32° (1:1.6) and it was not
possible to build embankments with the usual
inclination (1:1.5), which would normally ensure
slope stability for stone fill material.
4
ZAGREB—SPLIT MOTORWAY
2003
Maslenica, Croatia
Maslenica
Client:
Contractor:
HRVATSKE AUTOCESTE D.O.O
INSTITUT IGH, D.D.
KONSTRUKTOR SPLIT
2002 - 2003
Our Solution
In order to solve the problem of building
embankments on a steep ground base at these
two segments of the route, it was decided to build
embankments with reinforcement. The Maccaferri
TerraMesh™ System (TMS) was used for the
construction. The face of embankment is formed by
Gabion™s, which form blocks of 6m in height and
have 2:1 face inclination. Blocks are divided from
each other by berms, to reduce global inclination
of the structure and correct geometry during the
construction. The lengths of reinforcements used
in embankments were 5, 7 and 9 m, while the
height of Gabion™s is 0.5 m at lower part of the
embankments and 1 m in the upper part. Overall,
this was the demand of reinforcement density from
stability analysis.
The finished project ends up having a first
embankment of 176 m long with maximum height
of 29 m and a second bigger one of 208 m long with
maximum height of 30 m.

151
150
The “Variante di Valico” highway is an important
workstrategicfortheconnectionbetweentheNorth
and the South of the country, playing a fundamental
role for the mobility of people and goods between
Europe and the Mediterranean. The enhancement
of this stretch, which in 2015 recorded an average
daily of about 96,000 vehicles, of which about
23,000 heavy vehicles, therefore represented
an intervention priority in the framework of the
network expansion plan of Autostrade per l’Italia.
Over the years, Maccaferri has collaborated in the
design and supply of materials for the retaining
works, hydraulic protection and protection works
from the falling rocks made in the Variante di Valico.
In this specific case we only focused over the work
done toward the mitigation of the visual impact of
the tunnels concrete entrances.
Our solution
In the section the highway between Aglio and
Barberino - Lot 12 there are several Reinforced
lands with green facing to mask the entrances to
the tunnels of the lot. In this context, TerraMesh™
Green was used in the sloping portals of the
galleries that made it possible to minimize the
environmental impact. In some cases, the base was
made with the TerraMesh™ System with Gabion™
facing and the part in elevation with green facing.
Bologna - Firenze
VARIANTE DI VALICO
Green facing mask for the entrances of the tunnels
2011
Bologna - Firenze, Italy
Client:
Contractor:
AUTOSTRADE PER L’ITALIA SPA
SPEA
VARI
03/2010 - 01/2011
4

153
152
Minera Gold Fields La Cima is one of the world
leading companies in gold mining, with a gold
equivalent production of 2.2Moz. The project
was located in La Cima’s Cerro Corona mine, in
Hualgayoc (department of Cajamarca), which
needed to build a reinforced soil wall 16.5 m high
in order to generate an access platform for trucks
miners. The height of the wall required the use of a
robust and flexible system capable of withstanding
the thrusts generated by the wall itself, the loads
imposed by the mining trucks and the high seismic
acceleration of the area. Hatch company, project
consultants, contacted Maccaferri to propose a
design for the structure.
Hualgayoc
4
PRIMARY CRUSHER, CERRO CORONA PROJECT
An access platform for trucks miners
2007
Hualgayoc, Cajamarca, Peru
Client:
Contractor:
GOLD FIELDS LA CIMA S.A.
MACCAFERRI
MWH
TERRAMESH™ 25.5 TONS - PARAGRID™ 7,605 m2
09/2007 - 12/2007
Our Solution
A soil wall reinforced with TerraMesh™ System
was proposed, since the flexibility of the system
was ideal for this project. The design was made
by Maccaferri. The design was carried out with
the help of the program MACSTARS 2000; for
the proposed solution it was necessary to use of
TerraMesh™ units with additional reinforcement
of high resistance polyester geogrids Paragrid™
200/15, reinforcement density was designed with
the program mentioned. The wall was founded on
a fill with compaction controlled; the structural fill
material was rigorously selected and compacted up
to 95% of Modified Proctor. On-site quality control
was strictly monitored by the technical team of
Maccaferri. The construction lasted 4 months with
the work of the not high qualified labor from the
adjacent communities in the area of influence of the
mining project.

155
154
At the beginning of March 2018, a slope located
in the Corridor Road: “Casma – Huaraz – Huari –
Huaycabamba – Jircan – Tingo Maria – Monzon –
EMP. PE – 18A” came off due to a seismic effect,
reducing the section of the road and putting the rest
of the structure at risk of imminent collapse. As this
road is the main access road between the different
points of the road corridor and having a strong
pressure from the residents of the affected area,
Provias needed a solution to recover the platform
loss.
Our solution
The CASA company contacted Maccaferri, betting
on our solution for the design and construction of a
reinforced soil wall of 18 m high. The wall was built
using the TerraMesh™ System, since the flexibility
of the system was ideal for this project, and with
additional reinforcement of uniaxial geogrids of 120
kN. For the design, the software MACSTARS 2000
was used. The wall was founded on a concrete
conglomerate with controlled compaction; the
filling material structural was rigorously selected
and compacted up to 95% modified proctor.
Huaraz
CORREDOR VIAL: CASMA – HUARAZ
A quick solution to recover from a platform loss
2018
Huaraz, Áncash, Peru
Client:
Contractor:
CONSTRUCCION Y ADMINISTRACION S.A.
TERRAMESH™ 26.6 TONS - DRAIN PIPES 85.87 ML - MACGRID™ WG 10,530 m2
03/2018 - 09/2018
4

157
156
The Iguazu Falls, in the heart of the tropical forest,
on the border between Argentina, Brazil and
Paraguay, are one of the seven natural wonders of
the world. The Garganta del diablo is one out of the
numerous set of waterfalls of the Iguazú River, up
to 80 m high, that precipitate into a narrow gorge,
which concentrates the largest flow of the Iguazú
Falls, and of the the world.
CONIRSA carried out the construction of the access
to the Garganta del Diablo. In this section it was
necessary to join two parts of the hill that would
allow the continuity of the road corridor. Due to
the climatic, topographical characteristics and the
traffic of the road, it was necessary to find a flexible,
economical and safe solution.
Madre De Dios
4
Our Solution
It was decided to build a ground platform reinforced
TerraMesh™ System and geogrids of high Macgrid™
resistance. This project was carried out with the
MacStars® 2000 program help, which is software
developed by Maccaferri, for stability analysis
of slopes and reinforced soil walls. This project
consists of a double torsion wall, above which are
placed the road corridor and two walls of reinforced
soil in the lower right and left corner.
ACCESS TO THE GARGANTA DEL DIABLO
A project in the heart of the tropical forest
2008
Madre De Dios, Lima, Peru
Client:
Contractor:
CONIRSA
CONIRSA
CONIRSA
TERRAMESH™ 4.5 TON - MACGRID™ 1,884 m2
05/2008 - 10/2008

159
158
For the construction of the Potrerillos dam in the
province of Mendoza. The dam was built between
1999 and 2003 by a consortium consisting of
Industrias Metalúrgicas Pescarmona (IMPSA) to
provide flood control, hydroelectricity and irrigation
water. The main problem was that in order to build
the dam it was necessary to interrupt route 82.
This route connected the cities of the region, like
Potrerillos and Cacheuta. Once the construction
of the dam was finished, work began on the
reconstruction of route 82 in order to restore the
connection between Potrerillos and Cacheuta. The
trace of route 82 was also redesigned to generate a
tourist path in the perimeter of the lake (reservoir).
Pcia. - Mendoza PERILAGO PATH
Our contribution to the recontruction of route 82
2003
Pcia. - Mendoza, Potrerillos, Argentina
4
Our solution
The most adequate solution for the needs of the
work was the reinforced soil. The structure was
designed with TerraMesh™ System, the built wall
has a maximum height of 15m and a 22° inclined
vertical face. It was also necessary to provide
protection at the foot with Reno® mattresses, in
order to protect the structure from the effect of
erosion from rainwater.
Client:
Contractor:
DIRECCIÓN PROVINCIAL DE VIALIDAD DE MENDOZA
UTE HOMAQ - ROVELLA - PAEDILLE
- GABION™S 94,5 m3
- RENO MATRESS 2,190 m2
MACTEX™ N 26,600 m2
02/2002 - 07/2003

161
160
Tlacoachistlahuaca and Metlatonoc are two of
the eighty-one municipalities that make up the
Mexican state of Guerrero. They are both located
in the Costa Chica region. The construction of the
Tlacochistlahuaca-Metlatonoc highway, specifically
at km 86, presented an important engineering
challenge, the area has deposits of highly erodible
material which are prone to landslides. The
construction of embankments is essential to reach
the level of the road. The problem arose when
the embankment began to erode and due to the
presence of water it began to saturate, generating
an abrupt failure due to landslide and therefore
cutting off communication between these two
communities.
Metlatonoc
WALL TERRAMESH™ METLATONOC KM 86
Reestablishing the connection between Tlacoachistlahuaca and Metlatonoc
2012
Metlatonoc, Guerrero, México
4
Our solution
The highly uneven topography, the seismicity of
the area and the fact that the hump of the wall is
an exit point of a hydrological basin, added to the
challenge of choosing the ideal solution. In the
end, the TerraMesh™ system was proven to be
the best solution. In fact, the TerraMesh™ system
has been tested in environments with the same
characteristics listed before for heights above 15
m. Furthermore, its stone-based permeable face
allows the flow of water; its Paragrid™ 200/05
geogrids constitute the structural element of the
wall, absorbing the stresses generated by ground
thrusts; and finally, the Macdrain™ system evacuate
possible water leaks present in the reinforced soil.
Client:
Contractor:
SECRETARIA DE COMUNICACIONES Y TRANSPORTES SCT - GUERRERO
ARTURO ORTEGA
CONSTRUCCIONES Y DESARROLLO DE OBRAS CIVILES
TERRAMESH™ 250 m2
- MACDRAIN™ 200 m2
MACTEX™ 1,600 m2
09/2012 - 12/2012

163
162
Within the development of the primary metallurgical
process that includes a mining project is the
installation of a mechanically stabilized wall that,
in this particular case, as a topography that made
it difficult to reach the upper level of the crusher
where the trucks are intended to deposit the ore
extracted from the mine by turning.
Sonora
TERRAMESH™ WALL FOR QUEBRADORA
A 10 meters access ramp for trucks
2021
Sonora, Zona Norte, México
4
Our solution
The solution required an access ramp for trucks
with a final height of approx. 10 m, which is
appropriate based on the type of crusher to be
used. The TerraMesh™ system turned out to be
the best option because it used local stone to fill
the stabilized wall. The incorporation of Macdrain™
2L favoured the release of hydrostatic pressure,
avoiding additional thrusts. The retention of the
compacted soil was achieved thanks to the N50.2
geotextile, while the Paragrid™ HF 200 provided
the necessary resistance to guarantee the internal
stability of the system.
Client:
Contractor:
SILVERCREST METALS
AUSENICO
CIHUACOATL CONSTRUCCIONES
TERRAMESH™ 380 pcs - PARAGRID™ 6,750 m2
02/2021 - 03/2021

165
164
In the Camino Rojo mining project, there was a
need to install a primary crusher as an initial step
in its metallurgical process. The Camino Rojo mine,
located in the center of the country in Zacatecas,
is one of the largest silver mines in Mexico and
in the world. For the installation of its crusher, it
was necessary to design a wall for the cargo trucks
to able to climb to the height of the crusher and
deposit the ore to be broken by turning. The biggest
challenge was the absence of material to fill the
cells of the TerraMesh™ System due to its size of
gravel with soil behavior.
San Tiburcio
Our solution
With the Geotechnical information provided by the
consultant, a mechanically stabilized wall 62 m
long and with a maximum height of 19.10 m was
designed using the MacStars software. The lack
of fill stone was addressed with EG rigid geogrids
placed in the center of the TerraMesh™ cells, which
were surrounded with MacNet to prevent gravel
from leaking through the mesh diamond. The 80.1
geotextile wrapped the piece for retention of fine
soil. High strength PG geogrids and 2L drainage
were also installed.
SPECIAL TMS WALL FOR THE CAMINO
ROJO BREAKER
A new ramp for the primary crusher of the largest silver mines in Mexico
2021
San Tiburcio, Zacatecas, México
Client:
Contractor:
ORAL MINING
AUSENICO
CIHUACOATL CONSTRUCCIONES
TERRAMESH™ 825 pcs - PARAGRID™ 27,402 m2
- MACNET 3,500 m2
MACGRID™ 592 m2
05/2021 - 08/2021
4

167
166
Precipitation is extremely intense in the
mountainous area of Tlacoachistlahuaca-
Metlatónoc, in south-western Mexico. The area
is characterised with uneven terrain and prone
to continuous surface runoff of great magnitude,
which triggers global failures. The metlatónoc
road was directly affected due to the clogging of
its storm sewer, which caused saturation of the
ground and thus a partial rupture of the road body,
disabling vehicular traffic in the region.
Guerrero
REHABILITATION WITH MME ON
THE METLATÓNOC ROAD
A flexible and permeable solution able to withstand extraordinary hydrological events
2018
Guerrero, México
4
Our solution
Due to the topographic variation that favors
extraordinary hydrological events, the best solution
had to comply with being flexible to adapt to the
possible deformations of the soil from landslides,
as well as have a permeable side to favor the rapid
evacuation of water. The TerraMesh™ reinforced soil
system together with its complementary hydraulic
works was the one indicated, with also its formation
in berm walls that favored the safety factors. The
final project has a length of 60m and total height
of 10m, it is also reinforced with Paragrid™ 200
geogrid. Overall, it was the ideal configuration to
guarantee the free transit.
Client:
Contractor:
SCT DELEGACION GUERRERO
MACCAFERRI
COMERCONSTRUYE DE MEXICO S.A. DE C.V.
TERRAMESH™ 504 m3
08/2018 - 12/2018

169
168
Sorel-Tracy is a small town located on the south
shore of St. Lawrence River, roughly 75 km east of
Montreal. The town has been home of Rio Tinto,
Fer et Titane (RTFT) for many years. The RTFT is a
big complex (with a capacity to produce more than
one million tons of titanium ferrous slag annually),
and is recognized around the world as the key
supplier of titanium dioxide pigment; a compound
used in paints, plastics, textiles and papers. Due
to the nature of the facility, the residents of Sorel-
Tracy have lived with noise and pollution issues.
RTFT was looking for a permanent, safe, efficient
and cost effective solution to solve the noise and
pollution issues for the residents of Sorel-Tracy.
Sorel-Tracy
2016
Sorel-Tracy, Quebec, Canada
SOREL SOUND WALL
A permanent, safe, efficient and cost effective solution to solve the noise and pollution issues for the residents
of Sorel-Tracy
4
Our Solution
In order to facilitate RTFT’s requirements,
Maccaferri proposed TerraMesh™ Green (city side)
and Terrawall System (plant side) as the most
appropriate solution. In order to reduce the sound
7.5 m high and 64m long sound wall was required.
TerraMesh™ Green was installed on the city side
of the structure at 60º using Macgrid™ WG woven
polyester geogrids as primary reinforcement
within the slope. This proposal was selected as
offering the optimal balance of value and function,
meeting the clients objectives, including the
vegetating slope face. The Terrawall System was
installed on the plant side of the structure at 84º
using Macgrid™ WG woven polyester geogrids as
primary reinforcement. This proposal was selected
for its ability to use the available recycled crushed
concrete from the plant. Macgrid™ WG series
geogrids are used predominately in Mechanically
Stabilized Earth (MSE) and Reinforced Soil Slope
(RSS) structures. Macgrid™ WG geogrids are made
from high molecular weight, high tenacity polyester
multifilament yarns. The yarns are woven under
tension in the machine direction and finished with
a polymeric coating. Macgrid™ is engineered to be
mechanically and chemically durable, and resistant
to biological degradation.
Client:
Contractor:
RIO TINTO, FER ET TITANE (RTFT)
MACCAFERRI CANADA LTD.
A. & J.L BOURGEOIS LTEE
11/2016 - 12/2016

171
170
The Bay Bridge demolition and reconstruction
required a reinforced soil slope in the final phases
of the new bridge’s construction. A reinforced slope
was urgently needed behind the U.S. Coast Guard
building that sits at water level on the southeast
coast of Yerba Buena Island. The embankment
confinement system (ECS) facing alignment was
originally proposed to follow contours. However,
the proposed slope of the contours varied from
left to right and top to bottom, demanding custom
manufacturing and complex construction.
Bay Bridge
BAY BRIDGE, CALIFORNIA, 112-FOOT-TALL
VEGETATED RSS
Our contribution to the Bay Bridge reconstruction
2017
Bay Bridge, California, U.S.A.
4
Our Solution
Caltrans designed a 112-foot-high reinforced soil
slope, sitting on top of a 21-foot-high TerraMesh™
system mechanically stabilized earth (MSE) wall at
the bottom of the slope next to an existing Gabion™
gravity wall. Maccaferri manufactured all the ECS-
related products as part of a $1.5 million contract
with OC Jones. Maccaferri Inc.’s engineering
team led the discussions with the contractor and
Caltrans, and recommended alignment changes and
a uniform slope to simplify the construction, saving
the contractor time and money while maintaining
the solution’s quality and integrity. The project
team reinforced the 112-foot-high slope with the
TerraMesh™ Green ® system. The system’s angled
front face and erosion control blanket are designed
to help establish natural vegetation. In addition to
the slope’s height and complex nature, the project
team discovered underground obstructions that
were remnants of the old bridge. The team had to
figure out how to work around an existing drainage
system, manhole drain inlets, and an electrical duct
bank as well as numerous columns and foundations
associated with the new bridge. Maccaferri’s
TerraMesh™ system and polymer-coated Gabion™s
were used to form the TerraMesh™ system MSE
wall at the slope’s base. After the TerraMesh™
system and Gabion™s were installed at the bottom
of the slope, the project team started reinforcing
the slope using Maccaferri’s TerraMesh™ Green
system.
Client:
Contractor:
O.C. JONES & SONS, INC.
MACCAFERRI, INC.
O.C. JONES & SONS, INC.
TERRAMESH™ 112 FOOT HIGH
02/2017 - 11/2017

173
172
Triad Mining’s growing coal mining field was
expanding their plant in Indiana to include a
Coal Mine Dual Hopper System. A wall was
needed in order to support the loads of coal-
filled trucks going up the hill to dump the coal
into the hoppers. The trucks being used were
Caterpillar 777D, an off-highway truck weighing
162,000 Kgs. A wall that could hold a truck of
this weight with a full load of coal was needed.
Spurgeon
2012
Spurgeon, Indiana, U.S.A.
TRIAD MINING COAL MINE
The expansion of the Triad Mining Indiana plant
4
Our Solution
Maccaferri designed a wall using the HITEC
evaluated TerraMesh™ System because of its
longevity and its ability to meet the design
requirements of the project. The maximum height
of the wall was 17 m. Triad was able to use on-
site materials such as shale for the backfill, which
eliminated the need to bring new material in, saving
them time and money. With the on-site assistance
of Maccaferri, Triad was able to utilize their own
crew to construct the wall. Maccaferri provided
training to the crew, which had no experience in
this type of building application. The crew now has
the experience and knowledge to construct future
applications of this type. Construction of the wall
started early in the morning and continued into the
evening hours, using lights when it became dark.
The crew consisted of approximately 5 workers and
they were able to complete the construction in time
to begin using the facility in May of 2012.
Client:
Contractor:
TRIAD MINING, INC.
MACCAFERRI, INC.
TRIAD MINING, INC.
TERRAMESH™ 17 m
08/2011 - 09/2012

175
174
CRUSHER WALL AT SERAJUDDIN MINES
(JODA), ORISSA
A flexible and stable 22 m high earth retaining structure.
2014
Joda, Orissa, India
Joda
4
The Serajuddin mines is a mining & metals company
based out of Saheed Nagar, Bhubaneswar, Orissa in
India. The mining company planned the construction
of another central ore handling plant, consisting
of screening, crushing and Grinding of iron. Part
of the construction of the plant infrastructures at
the Serajuddin Mines, at Joda, Orissa was entailed
providing access to 22 m high loading bin at the
primary crusher. The complications associated
with such a high earth retaining structure required
the wall to be flexible in nature since the wall had
to accommodate excessive vertical and horizontal
load (175 KPa and 900 KN respectively) imposed by
heavy duty Caterpillar 785 mining dump trucks, as
well as the presence of a layer of soil having low
bearing capacity near base of the structure.
Our solution
A 22 m high vertical TerraMesh™ TM System
wall was proposed. The inherent flexibility of
the TerraMesh™ System TM made it an ideal
choice. The design was carried out with in-house
software MacStars W. High strength reinforcement
was provided at every 1 m interval. Non-woven
geotextile Terram 1000 was provided behind the
Gabion™ facia units (TerraMesh™ TM) as separator.
Reinforcement length at the main wall section
about 16m. Once completed, the first TerraMesh™
TM wall (22 m high) in India as crusher wall had
frontal face area 1771 m². A wing wall on each
side of the main wall tapered off at a slope of 1V
: 2H for an overall length of 82 m. The entire wall
was founded on 1m thick replaced foundation soil
strata. Only pre-approved selected soil was used
as backfill operation and compacted to 95% (+/- 2%)
proctor density. Quality control on site was strictly
monitored.
Client:
Contractor:
SERAJUDDIN MINES
M/S THRIVENI EARTHMOVERS PVT. LTD
TERRAMESH™ 1568 pcs - PARALINK™ 31,500 m2
01/2014 - 03/2014

177
176
MITIGATION OF LANDSLIDE ZONE AT NH-58,
LAMBAGARH
Implementing slope stabilization solutions for landslide zone
2021
Lambagarh, Uttarakhand, India
Lambagarh
Lambagarh slide is located on NH-58, the road
leading to the holy shrine of Badrinath which
receives large number of visitors every year. The
slide is very steep with an average inclination of
60°, near vertical at the crest and 34-38° below
the road. Alaknanda river runs along the toe of
the slide. Deep gullies can be seen on the face of
the slide due to surface runoff, leading to erosion
of fines, loosening of boulders, toe cutting and
formation of overhangs. This area comes under
chronic slip zone with slides hampering traffic every
rainy season. In 2013, the road was badly damaged
because of landslide caused by the flash floods. The
main causative forces were:
• Toe erosion by river Alaknanda.
• Water seepage (glacier melting).
• Rainfall (triggers the surface erosion).
• Steep slope.
• Anthropogenic activities.
The site faced challenges of limited uninterrupted
working period of only 5 months, clearances,
maintenance of existing roads and slides on hill
side. The client was looking for an effective and
innovative solution to protect the road from
landslides.
Our solution
Maccaferri worked in a JV to implement slope
stabilization solutions for landslide zone between
Km 504.00 to Km 505.00 on NH-58. It included
shifting of the existing road from its current location
through construction of a flexible reinforced soil
wall (RS wall) with Gabion™s as facia (Maccaferri
TerraMesh™ system- 3m*1m*1m and 0.5 m with
2 m long integrated tail) and high strength geogrid
(Paralink™) as reinforcement towards the valley
side. This counteracted the destabilizing forces due
to heavy hill surcharge with seepage. The height
of the wall varied from 27 m to 44 m for a total
length of 500 m. The stones and backfill material
for the wall were locally sourced hence making
the solution economical and with a low carbon-
footprint. Structure was protected from scour and
boulder hit with RCC jacketing up to a depth 5 m
below bed level. A rockfall embankment (using back
to back TerraMesh™ and Paralink™ reinforcement)
of 320 m length and 10m height was constructed
at hill side toe to protect road from direct impact
of falling debris and rocks. A new flexible pavement
was also constructed as part of the project.
Client:
Contractor:
NH-UTTARAKHAND PWD
CASTA ENGINEERS AND BYUCKSAN INDIA PVT LTD JV
MACCAFERRI AND BHARAT CONSTRUCTION JV
TERRAMESH™ 16,825 pcs - PARALINK™ 2,90,520 m2
- MACTEX™ N 45,080 m2
10/2016 - 02/2021
4

179
178
FCF Minerals Corporation operates gold and
molybdenum minerals exploration in Runruno,
Quezon, Nueva Vizcaya, Philippines. A 29 meters-
high retaining structure was needed for the
construction of the run of mine (ROM) pad. The
structure was required to have a wide bench mid-
height for servicing of heavy equipment.
Runruno
FCF MINERALS ROM PAD
A 29m-high reinforced soil slope with TerraMesh™ Green
2015
Runruno, Nueva Vizcaya, Philippines
4
Client:
Contractor:
PLANT & INFRASTRUCTURE ENGINEERING (PAIE)
03/2014 - 08/2015
Our Solution
Based on the data provided by FCF Minerals
engineers and with the supervision of the
Project Consultant (PAIE), Maccaferri engineers
recommended a 29 m-high reinforced soil slope
using TerraMesh™ Green as facing units and
Macgrid™ woven polyester geogrids as main soil
reinforcements. TerraMesh™ Green units promoted
vegetation on the slope facing. The reinforced
backfill of the structure was required to be
compacted to minimum 95% of MDD by Standard
Proctor. The height of the reinforced soil slope varied
as it followed a safe angle for the ramp of heavy
equipment located on its top. The design had been
proven to be structurally sound and economical and
met the tight construction schedule for the project.
The remaining slopes immediate and terminal to
the ROM pad had been built by compacting the
backfill materials according to required density and
relaxing the facing angle to less than 45 degrees.
Maccaferri’s biodegradable geoblanket made of
coconut fibers (BioMac C) was used together with
Vetiver and peanut grasses to control erosion and
expedite vegetation.

181
180
Soekarno Hatta Railway is an alternative
transportation route to reach Soekarno Hatta
International Airport (the most active airport in
Indonesia). The railway is built at urban area with
dense population and limited area of workspace;
hence a steep slope of embankment had to be
followed. The railway was also constructed on soft
soil; therefore, a ground improvement solution had
to be applied before the work of main embankment.
Necessity of project completion under tight
schedule and effective cost became an important
aspect of using Paramesh – MSE Wall System
(Retaining Wall) as the solution of the steep slope
of embankment.
Tangerang
PARAMESH SYSTEM OF SOEKARNO
HATTA RAILWAY PROJECT
An alternative transportation to reach Hatta International Airport
2017
Tangerang, Banten, Indonesia
4
Client:
Contractor:
PT. KERETA API INDONESIA (PERSERO)
PT. VIRAMA KARYA
PT. WASKITA KARYA (PERSERO) TBK
TERRAMESH™ 4-12 M HEIGHT, 2 KM LENGTH
01/2017 - 12/2017
Our Solution
Following the described and identified problems,
Paramesh – MSE Wall System was chosen
compared to conventional method. Paramesh
System by Maccaferri uses Paralink™ 300 (Geogrid
300 kN/m) as primary reinforcement, TerraMesh™
as facing and secondary reinforcement, Mactex™
MXS 250 as separator and filtration between the
reinforced backfill soil and box of TerraMesh™.
The designer has conducted the analysis using
internally developed Maccaferri Software (Macstars
W 4.0) and finite element software – Plaxis. The
retaining wall stability was checked under both
static and seismic condition along with the stability
during soil excavation and construction phases had
been verified. Maccaferri provided comprehensive
services starting from design and planning stage
with technical recommendation, manufacture
and supply materials, and construction stage with
Product Assistance. Most of the materials from
Maccaferri are manufactured locally in Indonesia
under International and National Standardization
and verified by TKDN certificate.

183
182
In 2016, there was a landslide at Jalan Bukit
Kemuning, Batam caused by heavy rain that
continued for two days in the hilly area. As a result,
some houses adjacent to the road were severely
damaged and several more houses were in danger
should there be subsequent landslides. In addition,
road access connecting the Tanjungpiayu area had
also been cut off. The local government immediately
took action to evacuate residents to safer areas
and prevent further landslides from occurring.
The slopes needed to be stabilized with retaining
walls to provide safety for the road user and the
surrounding community. Innovative solutions with
fast installation were needed to optimize the soils
from cut-slopes.
Our solution
Maccaferri proposed to use its innovative Paramesh
system – an MSE (Mechanically Stabilized Earth)
wall – as a solution to the landslide problem in
Bukit Kemuning. Paramesh system consists of
TerraMesh™ as a secondary reinforcement and
high strength geogrid Paralink™ 300 as a primary
reinforcement, with a tensile strength of 300 kN/m.
The system has a Sub Drainage System using a
30cm thick rock layer wrapped with non-woven
geotextile. Maccaferri provided comprehensive
services starting from the design and planning stage
with a technical recommendation, manufacturing
and supply of materials, and construction stage
with product assistance on the site. Most of the
materials from Maccaferri are manufactured locally
in Indonesia under national and international
standardization. After the system’s installation,
the location of the previous landslide has become
one of the favorite tourist attractions for the Batam
community. People stop at the location to enjoy the
view of the city of Batam in the afternoon and the
number of visitors will much increase in the month
of Ramadan. The local government also provides
adequate culinary tourism facilities along with a
safety fence on the roadside. Now people can safely
enjoy the panorama at Bukit Kemuning.
4
Batam
MSE WALL FOR ROAD REHABILITATION AT
BUKIT KEMUNING
One of the favorite tourist attractions of the Batam community
2017
Batam, Kepulauan Riau, Indonesia Client:
Contractor:
MINISTRY OF PUBLIC WORKS
PT BATAM STRUTTURALI ENGINEERS
PT JATI RAJA KONTRAKTOR
TERRAMESH™ 800 pcs - PARALINK™ 12,600 m2
07/2017 - 10/2017

185
184
LanPing County is very rich in mineral resources,
mainly non-ferrous metal minerals. It enjoys
the reputation of “Hometown of Non-ferrous
Metals in Yunnan” and “Pearl of the Plateau in
Northwest Yunnan”. It is a key mining area on the
“SanJiang Metallogenic Belt”. The dump site is
located in the sub-stable area of the crust and it’s
basically stable under the current situation. There
are no unfavorable geological phenomena such
as subsidence caused by tunnels left over from
history and goafs in the mine, and it is suitable for
capacity expansion. In order to ensure the smooth
implementation of open-pit mining, various factors
needed to bew taken into consideration such as
waste rock transportation, land acquisition and
relocation, safety measures, etc. After multi-level
grading of the dump site with a height of more than
100 meters, it was necessary to set up a slag dam
at the bottom to avoid occupying the ground of the
boundary of the lower refractory ore storage yard
and to further ensure the stability of the entire
dump. The challenge consisted in the fact that if the
slope of the high fill dump could not be supported in
a timely and effective manner, a collapse was likely
to happen. Therefore, the owner urgently needed
to find a technically feasible, safe and economical
blocking solution.
LanPing - Sanchongshan
LANPING LEAD-ZINC MINING SANCHONGSHAN
DUMP RETAINING WALL PROJECT
The Pearl of the Plateau in the Northwest Yunnan
2022
LanPing - Sanchongshan, China
4
Client:
Contractor:
YUNNAN JINDING ZINC INDUSTRY CO. LTD
KUNMING NONFERROUS METALLURGY DESIGN AND RESEARCH INSTITUTE
YUNNAN JINDING ZINC INDUSTRY CO. LTD
TERRAMESH™ AND PARAGRID™ 2,868 pcs
10/2021 - 12/2022
Our Solution
According to the geological conditions and
engineering requirements of the project, the owner
and the design unit comprehensively considered
the economy and the overall force of the retaining
wall, and finally decided to adopt the TerraMesh™
retaining wall scheme. The main characteristics of
the project are:
1. The TerraMesh™ system slag dam is composed
of reinforced Gabion™ and geogrid. The main
reinforcement of the reinforced soil adopts a
high-strength fiber-plastic grid of 150~200
KN/m. The reinforced Gabion™ adopts galvanized
and high wear-resistant organic coating double-
stranded hexagonal metal mesh as the face wall,
and the inside of the face wall is filled with stone
excavation. The structural fill is also made of
waste soil, gravel and other materials, which are
taken locally to save the project cost to a large
extent.
2. The maximum design height of the retaining
wall of the slag dam is 30 m. The sloped body is
reinforced with fiber-plastic grilles. The length of
the reinforcement in the dam body is determined
by the top width of the reinforced Gabin slag dam
of 5m, the bottom width of 53 m and the slope
ratio of the inside and outside of the dam body.
3. Because the foundation trench is deep, the bank
slope is high, the terrain is steep, and the physical
and mechanical indicators of the stratum are
low, the bank slopes on both sides needed to be
excavated in steps.

187
186
A new public junior high school, Anhua Ziwei Middle
School has been built in the Anhua country, Yijang
city, Human Province. This school will not only solve
the problem of large class sizes at the junior high
school level in Anhua County once it is completed
but will also make it much easier for junior high
school students to enroll in the southern part of the
county. It will also greatly improve the conditions of
schools in the country and accelerate the balanced
development of compulsory education.
The current situation of the project slope is the
original mountain and the gully landform. Because
of the requirements of the general map layout,
it is necessary to landfill the southern gully of
Ziwei Middle School, and the exit of the east
side of the gully is the eastern road to the slope
top comprehensive teaching building of Ziwei
Middle School. This will form a high fill slope with
a thickness of up to 60 m or more, and the slope
length is about 100 m.
Yiyang City
ANHUA ZIWEI MIDDLE SCHOOL PROJECT
A newly built public junior high school to accelerate the development of compulsory education
2021
Yiyang City, Hunan Province, China
4
Our solution
and requirements of the project, the client and
the design unit comprehensively considered the
economy, ecology and the overall force of the
retaining wall and finally decided to adopt the
composite reinforced Gabion™ retaining wall
solution.
The ecological reinforced Gabion™ retaining wall
is composed of Gabion™, reinforced Gabion™ and
geogrid. The front of the retaining wall is a reinforced
Gabion™ wall of one-meter-high. The lower 9m
main reinforcement of the reinforced retaining wall
adopts a two-way warp knit polyester geogrid of
150 KN/m; while a one-way fiber plastic geogrid of
100 KN/m is adopted above 9 m. The length of each
main reinforcement is adjusted accordingly to the
slope height and strength.
Based on the extremely high height of the fill, the
vertical design of the structure adopts a segmented
design, and according to the spatial distribution of
each structure in the area, double to multiple rows
of cantilevered anti-slip piles are adopted below the
elevation of 130.0 m on the slope. The filled slope
above 130.0 m elevation is supported by reinforced
Gabion™ stone cage and geogrid.
Client:
Contractor:
ZIWEI MIDDLE SCHOOL
HUNAN PROVINCIAL SURVEY AND DESIGN INSTITUTE CO. LTD
ANHUA DUOLING HUACHENG REAL ESTATE CO. LTD
PARAGRID™ 100 68,850 m2
- MACGRID™ WG15 19,575 m2
07/2021 - 09/2021

189
188
The Beijing-Zhangjiakou high-speed railway was
opened on the 30th of December 2019, and is
the world’s first driverless high-speed railway,
shortening the traveling time from Beijing to
Zhangjiakou from 3 hours and 7 minutes to only
47 minutes. The project is located on the core
of China ecological scenic spot, and because of
that the landscape requirements are extremely
high. Furthermore, the excavation within the
tunnel entrance area is steep and the slope is
rocky, so it is very difficult for the vegetation to
survive. Moreover, the project is in the arid area of
northern China, where the survival rate of green
plants is low. Lastly, the terrain was steep and the
construction site was narrow, which overall made
the construction challenging.
Beijing-Zhangjiakou
BEIJING-ZHANGJIAKOU HIGH-SPEED
RAILWAY PROJECT
Our contribution to the world’s first driverless high-speed railway
2019
Beijing - Zhangjiakou, China
Client:
Contractor:
BEIJING RAILWAY BUREAU GROUP CO. LTD.
CHINA RAILWAY ENGINEERING DESIGN CONSULTING GROUP CO. LTD.
CHINA RAILWAY SIXTH AND FIFTH BUREAU GROUP CO. LTD. - CCCC SECOND
NAVIGATION ENGINEERING BUREAU CO. LTD.
TERRAMESH™ GREEN 3,429 pcs - MACTERRA 5,523 m2
07/2019 - 09/2019
Our Solution
Considering the engineering characteristics and
landscape needs, Maccaferri recommended the
TerraMesh™ Green wall and MacTerra greening
solution. The slope ratio of the TerraMesh™ Green
wall was built to be 1:0.466, each wall was divided
into 3 to 4 levels according to the scene for a total
level height of 3.65m. In some parts with steep
terrain and insufficient land area, soil nailing and
TerraMesh™ Green system solution were used to
reduce the excavation of the original slope.
4

191
190
Sanming is an emerging tourist city with a beautiful
landscape garden; for this reason, it’s an important
eco-tourism area for the whole province. Shaxian is
an important transportation center in central Fujian
in Shaxian, Sanming City. In the long-term, it has
the conditions to expand into a 4D-level airport. The
runway extends 2,800 meters to the northeast, and
direct flights to major domestic routes. Sanming
Airport involves a large number of high fill and
protection works, involving 60 million cubic meters
of earth and stone works. It is necessary to focus
on the slope protection scheme. If the slope is
too steep, the construction cost will be too high,
and all natural grading treatment will lead to
encroachment. A lot of land, so a balanced design
consideration is required. In addition, the project is
located in a subtropical marine monsoon climate,
with heavy rainstorms in summer, and the adverse
effects of rainstorm erosion need to be considered.
Sanming
FUJIAN SANMING AIRPORT TERRAMESH™
RETAINING WALL PROJECT
6-level reinforced TerraMesh™ slope
2014
Sanming, Fujian, China
4
Client:
Contractor:
SHANGHAI HIGHWAY AND BRIDGE (GROUP) CO. LTD.
CIVIL AVIATION NEW ERA AIRPORT DESIGN INSTITUTE GUANGZHOU BRANCH
SANMING AIRPORT CONSTRUCTION HEADQUARTERS
TERRAMESH™ SYSTEM 1,899 pcs - GREODRID 200,000 m2
03/2013 - 09/2014
Our Solution
Relying on Maccaferri Group’s rich experience
in handling super high fill engineering walls and
drawing on similar cases in China and abroad, after
comparing and selecting design plans, a reinforced
wall with TerraMesh™ system was adopted. The
project consisted on setting 6-level reinforced
TerraMesh™ slope, the rate of the slope was to be
of 1:0.75, which greatly reduced the land occupation
of the structure, the amount of filling of the project
and the damage to the ecological environment by
minimizing damage to forest area. For Sanming
Airport, TerraMesh™ wall reinforced slope scheme
was adopted. The porous structure of the Gabion™
panel has self-permeability and well-suited, to the
subtropical marine monsoon climate in Fujian, and
has excellent anti-scour performance. It solved the
scouring problem of heavy rain, and the flexible
reinforced Gabion™ structure also well adapted to
the adverse effects such as settlement that often
occurs in high fill engineering walls.

193
192
This project is located on the right side of the
K11+600 ~ K11+760 section of the Huaxi to Anshun
Expressway in Guizhou Province. Since it crosses
farmland, a river and is close to a trunk highway,
the land use is greatly limited. The maximum height
of the retaining wall is 23 m. The project is located
in a hilly and mountainous area. The lithology of the
site consists of a silt clay containing breccia and
clay containing gravel, the thickness is not big, the
gravel is weathered strongly and the foundation
bearing capacity is 180-220 kpa. The underlying
bedrock lithology is gray sandstone, dolomite, etc.,
the buried depth of the bedrock is shallow and
the rock mass fractures are densely developed.
In addition, the weather is also very strong.
and requirements of the project, the TerraMesh™
retaining wall scheme was decided to be adopted.
The TerraMesh™ retaining wall greatly shrinks
the foot of the subgrade slope, saves the earth,
reduces the area and avoids the reconstruction
of the old road on the right side. At the same
time, it also supports new retaining technology
for high embankments in Guizhou Province.
Huaxi - Anshun
GUIZHOU HUAXI TO ANSHUN HIGH-SPEED
TERRAMESH™ RETAINING WALL PROJECT
A solution capable of satisfying all the environmental and technical requirements
2016
Huaxi - Anshun, Guizhou, China
4
Client:
Contractor:
GUIZHOU TRANSPORTATION GROUP
GUIZHOU TRANSPORTATION PLANNING SURVEY&DESIGN ACADEME CO.LTD
GUIZHOU BRIDGE ENGINEERING CO. LTD
TERRAMESH™ 1,200 pcs - MACDRAIN™ 28,000 m2
03/2016 - 05/2016
Our Solution
The TerraMesh™ retaining wall was adopted, this
type of solution can save the land and adapt to
the uneven settlement of the foundation, which
in this project has a very low bearing capacity.
The structure consists of a TerraMesh™ system
reinforced with Paragrid™; the side wall is filled
with stone, which are derived from the tunnel after
the excavation and from the slope beside the site
(if met with the corresponding requirements). The
maximum height of the retaining wall is 23 m, the
spacing of the main reinforcement is 1m, and the
length of the reinforcement is different from 6 m
to 17 m in a normal trapezoidal arrangement, for a
total of 23 layers.

195
194
Mega projects and / or projects of national interest, such
as large road embankments, airports or railways. The
dimensions are generally over 10,000 m² of surface,
with TerraMesh™ walls with heights of over 20 meters.
Projects may require in-depth geotechnical and stability
investigations.
ENGINEERING
CHALLENGE
2
1 3 4 5

197
196
In February 2018, the city of Antwerp launched
a major infrastructure project to develop the
Oosterweel Link, in order to make it the best
mobility solution for citizens. Maccaferri, with
Texion as official partner, was involved in the project
development, offering the city its proven technical
experience and an innovative solution portfolio.
The Oosterweel Link project is a 15 km-long
motorway connection developed by Lantis for
completing the Antwerp ring road R1 (Belgium). Its
design started in the 1990s to find a solution to the
congestion problems in and around Antwerp. The
total estimated cost of the project is approximately
€4.5 bn.
Based on the “De Grote Verbinding” (the Great Link)
project, Oosterweel will consist of five sub-projects
to optimize local and freight congestion, for a total
estimated cost of approximately €4.5bn. The whole
project should be fully up and running by 2030.
Antwerp
ANTWERP’S OOSTERWEEL LINK
Our contribution towards a sustainable mobility
2022 Ongoing
Antwerp Belgium
5
Our solution
Maccaferri´s Corporate Technical Department
has supported and is still supporting the main
designers step by step from the first preliminary
Global and Internal stability checks with Limit
Equilibrium Method (LEM) analyses carried out with
MacStars Software to Finite Element Method (FEM)
deformation analyses due to the strict restrictions
on displacements.
The use of inherently sustainable products, aimed
at promoting easier integration between urban and
natural landscapes, was among the key points of
Maccaferri’s involvement in the Oosterweel Link
project. Maccaferri has used double twist wire
mesh reinforcement together with Paralink™ and
Paragrid™ geogrids, offering a significant cost
effectiveness and performance leverage. A 3D-BIM
model was also created to check and design all
possible interferences on the reinforcements.
The project includes 23.000 facing sqm of
“TerraMesh™ Green”, 16.000 facing sqm of
“TerraMesh™ Mineral and System, 275.000 sqm of
Paragrid™ and Paralink™ geogrids, and 5.000 facing
sqm of Gabion™ cladding. During 2020-2021 and
2022, 37.000 sqm of MSE walls have been already
installed, with a maximum height of 13m for the
structures erected so far.
Thanks to this project and a series of synergetic
interventions, the city of Antwerp can now be
considered a virtuous example of how urban spaces
can adapt to the needs of citizens and the need to
achieve standards of sustainability.
Client:
Contractor:
LANTIS / TEXION GEOSYNTHETICS NV
ARCADIS NV /LANTIS
STADSBADER NV
TERRAMESH™ (SYSTEM, GREEN AND MINERAL) 20,000 + pcs
2018 - 2022 ONGOING

199
198
The Korca - Erseka Road project is located in the
southeast of Albania, the project construction
started in March 2021 and finished the first part
in January 2022. Currently, the road axis Korca
Erseka has a length of 45 kilometers, while with
the completion of the new segment the distance
is reduced to 35 kilometers. The challenge was to
build a construction able to promote the further
development of tourism in the southeast of the
country by bringing closer two areas with great
development potential, such as Korca and Erseka.
With its completion, the distance between Korca
and Erseka will be reduced to 20 minutes. Being
a unique design with back-to-back earthed filled
structures, the contractor company ANK asked
Maccaferri to support them for the project. After
running the profiles in Macstars 4.0 we found out
that the geogrid reinforcement lengths designed by
ANK were not satisfying the stability checks.
5
Korca
TERRAMESH™ RETAINING WALL
KORCA-ERSEKA-LOT2 PHASE1
Promoting the further development of tourism in the southeast of Albania
2022
Korca, Albania
Our solution
Firstly, we redesigned the solution using
TerraMesh™ units with dimensions 3x3x1x1 m,
to ensure stability the TerraMesh™ System was
reinforced with Paralink™ 300 and Macgrid™
WG15 according to the software Macstars2000
calculations. This way we obtained the most
cost-effective solution. The construction of the
wall started in March 2021, and it was finished in
January 2022. In total 4 TerraMesh™ back-to-back
walls were built around 31’500 m² of façade.
The two biggest walls are the first one, with 325
meters of length and a maximum height of 32
meters; and the fourth one, the longest, with its
525 meters that reach a maximum height of 16
meters. While the second one and the third one are
considerably smaller with respectively 130 and 50
meters of length for a maximum height of 12 and
16 meters.
Client:
Contractor:
ANK SHPK
A&E ENGINEERING SH.P.K.
ANK SHPK
- PARAGRID™ WG 197,400 m2
02/2021 - 01/2022

201
200
Rreshen Kalimash Motorway project is Albania’s
largest public contract ever signed, the 103 km long
motorway is a key connection between Durres Port,
Albania’s primary harbor on the Adriatic Sea and
Kosovo. The objective was to reduce the journey
times and thanks to this project six and ten hours
of cruise will be reduced to two and the new route
will serve to stimulate the economy in Albania’s
North Eastern region. Furthermore, due to the
mountainous topographic area, many sections of
the motorway had to run alternately through large
steep embankment fill sections and slope cuts, with
soil reinforcement, rock-fall protection, erosion
control and revegetation measures.
Durrës MIXED RSS FOR THE RRESHEN-KALIMASH HIGHWAY
Part of Albania’s largest public contract
2010
Durrës, Western Albania, Albania
5
Our solution
Bechtel-Enka brought in geotechnical specialists,
Maccaferri in a partnership arrangement to
provide engineering design solutions for the
walls. Maccaferri’s responsibility encompassed
the design assistance, structural calculations and
construction drawings for the 30 walls. For 20 of
the walls, Maccaferri also provided supervision
and construction management through its local
partner Albania Draht. The 30 composite reinforced
soil structures have a total facing surface area of
more than 35,000 m², with the maximum wall
overall height of 40 m. The walls, where a steep
(84°) facing was required, have been constructed
using a hybrid reinforced soil system, combining
two Maccaferri products; -TerraMesh™ System, a
double-twisted steel wire mesh unit which forms
structures with the aesthetics of Gabion™s but with
the reassurance of soil reinforcement -Paralink™
300, a high strength polyester geogrid (primary
reinforcement). The Paralink™ was spaced at 1 or
2 m vertical centres depending upon the design
requirement. These walls are among the highest of
their type constructed anywhere
The availability of large quantities of rock fills
generated by the slope excavations made the
choice of embankment fills a more cost-effective
alternative to the construction of viaducts. Of the
70 retaining walls required, those up to 15m high
were constructed of concrete. However, the 30
walls over 15 m high were designed as reinforced
soil structures to reuse site won fill and reduce the
visual impact.
Client:
Contractor:
MINISTRY OF PUBLIC WORKS & COMMUNICATIONS ALBANIA
ALBANIA DRAHT / MACCAFERRI
BECHTEL-ENKA JOINT VENTURE
03/2008 - 10/2010

203
202
Engineering challenge Tasiast mine in Mauritania
is one of the largest gold mines in the world, only
last year it produced more than 6 tonnes of gold
equivalent. The mine is located about 300km
north of Nouakchott and 162 km east-south-east
of Nouâdhibou in the north-western Mauritania
in the Adrar massif. As part of its operation the
company KINROSS mining commissioned a primary
crusher wall, requiring the construction of two side
walls with a height of 32 and 50 meters. To satisfy
the requirements it was selected Maccaferri’s
reinforcement technique floor with vertical
TerraMesh™ System mineral facing. The AUSENCO
company, in charge of the project management of
work,wasconvincedbythemechanicalperformances
of the TerraMesh™ system as well as the technical
support provided by Maccaferri’s experts.
This project end up being one of the highest
TerraMesh™ wall system in the field of Mining
applications!
5
ADRAR MASSIF TASIAST GOLD MINE
One of the highest TerraMesh™ wall system in the field of Mining applications
2018
Tasiast, Mauritania
Tasiast
Our solution
The TerraMesh™ system is a system combining a
Gabion™ facade to a reinforcing ply of continuous
mesh from the facing. The Gabion™ part ensures a
neat facing while the mesh reinforcement allows
a reinforcement of the rear embankment and
the holding of the massif. In addition to netting,
reinforcement geogrids of the Paralink™ 300 type
and Paralink™ 400 have been added over a length
of 20m in the backfill to provide the necessary
reinforcement. The constituent mesh of the
TerraMesh™ system is mesh hexagonal double
torsion (run-proof) coated with polymers. The
dimensioning of the structure was carried out by the
Maccaferri technical department using the software
internal MACSTARS slope stability in order to define
the length, spacing and type of reinforcement. The
construction of a retaining structure of such scale
requires careful placement of structures and strict
compliance with the work procedure. MACCAFERRI
has transmitted a complete work procedure to
assist the company in all the stages of carrying
out the work. The cages were filled with stones
extracted and crushed on site, therefore nearly
4000 t of stones were needed to fill the cages. In
considering an average gold concentration of 5g/t
of stones extracted, the wall is made up of about
20kg of gold!
Client:
Contractor:
KINROSS
AUSENCO
TASIAST MAURITANIE LTD SA
09/2017 - 03/2018

205
204
The lack of A/D European specifications for the
connection of the Peloponnese with the rest of
Greece and Europe led to the construction of a
new, advanced, and comfortable A/D, which safely
connects the western part Greece with the rest
of the country (from and to its port Patras, the
archaeological and tourist attractions areas).
The construction on the 120 km section of
OLYMPIA ROAD CORINTHOSPATRA was carried
out simultaneously with traffic of vehicles and
in a particular unstable geological ground. The
whole project included 47 bridges, 13 junctions,
22 overpasses and 12 tunnels of a total length
of 16 km. The many geotechnical difficulties
during the construction phase required the use
of approximately the entire range of Maccaferri’s
materials.
Attica - Corinzia - Acaia
5
CONSTRUCTION A/D OLYMPIA ROAD
A safe connection to western Greece
2019
Attica - Corinzia - Acaia, Greece
Client:
Contractor:
J & P AVAX S.A. - TERNA SA - AKTOR A.T.E.
K/X OLYMPIA STREET
J & P AVAX S.A. - TERNA SA - AKTOR A.T.E.
TERRAMESH™ 3,360 pcs - TERRAMESH™ GREEN 3,175 pcs
MACGRID™ 270,000 m2
02/2013 - 09/2019
Our Solution
Our company collaborated with the study group
during the design phase as well as with the technical
companies during construction, offering specialized
solutions with high quality products. Reinforced
embankments were constructed using TerraMesh™
system and TerraMesh™ Green combined with
Macgrid™ WG, Paralink™ and Paragrid™ geogrids.
During the project, a difficult case study involved the
14 meters high retaining wall built near the village
of Elaionas. Statics data was entered to design
permanent loads, as well as the expected cyclical
loads of traffic vehicle and seismic analysis were
conducted. As a result of the study, our engineers
suggested the application of TerraMesh™ system
for the reinforced embankment.
The results design imposed the use of geogrid type
Macgrid™ WG for reinforcement and to increase the
load capacity of TerraMesh™ pieces; moreover, the
length of these polymers of geogrids was calculated
to penetrate 15m into the slope.

207
206
The highest peak in UAE, Al Jais, is located in the
Northern Emirates of Ras Al-Khaimah, 25 Km away
from the main town. As per the master planning,
the mountain top is to be developed as a unique
tourist destination with resorts, the world’s longest
zip line, golf course, etc. The proposed 36 km long
road to the mountain peak site rises to a height
of 700 meters; as it is the highest peak in UAE,
construction ought to be challenging due to large
quantity of earthworks, difficulty in access, moving
up construction machinery, etc.
The existing site condition required a nearly
vertical retaining structure of height 32m between
chainages 20+350 to 20+575. Additionally, the
site receives occasional rainfall & snowfall; during
the rains, flash floods are quite common and they
even wash away the entire road and underlying
embankment. Consequently, the high retaining
structure had also to be naturally free draining and
stable against the potential effect of additional
hydraulic forces behind the structure.
Ras Al
Khaimah
RETAINING WALL NO. 10 FOR MOUNTAIN
ROAD TO JABEL JAIS
36 km long road to the highest peak of the UAE
2013
Ras Al Khaimah, United Arab Emirates
5
Client:
Contractor:
PUBLIC SERVICE DEPARTMENT, RAS AL KHAIMAH
HALCROW INTERNATIONAL PARTNERSHIP
GENERAL MECHANIC COMPANY
11/2012 - 08/2013
Our Solution
Maccaferri was subcontracted for design, supply,
and construction assistance of the 32 m high
retaining wall with Paramesh system, a widely
used composite system by combining high strength
Paralink™ geogrids along with TerraMesh™ facing
units. This solution is a lot more cost-effective and
easy-to-apply, particularly for such high structures.
The constructed total facia area of retention is
4100 m², ranging in height between 5 m to 32 m.
The site strata primarily consisted of sedimentary
rock, which varied from weathered to hard rock
conditions. The backfill material used between
Paralink™ geogrid layers contain relatively larger
particle sizes, thanks to the superior polyethylene
coating on the geogrid material’s polyester core.
The possibility of using local materials like high
graded backfill material and boulders for Gabion™
facia resulted in considerable cost savings in the
project. The actual site conditions varied a lot
from the design conditions that resulted in few
design revisions, but due to the flexibility of the
TerraMesh™ system; the units could be easily
modified/deformed at the site to match the new
site requests.

209
208
The Museum of the Future (MOTF) is a unique
initiative by the Dubai government that explores the
future of science, technology, and innovation and is
located at a prime spot in Sheikh Zayed Road near
the Burj Khalifa. The architect ‘Kila’ designed MOTF
in three main parts: the lower green hill, the upper
building, and the elliptical void, representing earth,
mankind & innovation, respectively. The inspiration
for the green hill was also to elevate the building
calmly and unobtrusively above the metro line and
create greenery in elevation where visitors can
enjoy while engaging with the Museum. The green
hillhad to be done through a smooth transition
from the site as an earthen, vegetated mound
with a minimal visible built intervention. A three
story podium structure had be embedded inside
the green hill, which houses the lobby, auditorium,
cafés, restaurants, retail, car parking, etc. For the
aforementioned reasons, the vegetated mount
had to be done as a thin cladding of varying slopes
rather than a solid earth hill.
Dubai
MUSEUM OF THE FUTURE
A green contribution to a piece of art
2021
Dubai, United Arab Emirates
5
Our solution
Maccaferri was chosen as the technology provider
for the green cover system; thanks to the wide
range of products in our portfolio we were able
to achieve the varying slope requirements of the
artificial green mount of the project. After studying
the landscaping requirements, Maccaferri proposed
to categorize the green cover system based on
final slopes, and accordingly, the products were
suitably chosen. The first choice was the Biomac
cover for slopes up to 35- degree inclination; the
second choice was Macweb geocell for slopes up
to 45- degree inclination and lastly the TerraMesh™
Green reinforced soil system for slopes up to
70-degree inclination. For the first two cases,
continuous veneer reinforcement was proposed
below the thin soil fill by means of Maccaferri wire
netting or Macmat HS, which were anchored on the
concrete beams at the top. Additionally, Macdrain™
drainage composite was proposed below the entire
surface area of the green cover system for the easy
draining of continuous irrigation water. Maccaferri
was therefore involved in the design, supply, and
construction assistance of the project.
Client:
Contractor:
MERAAS
BURO HAPPOLD ENGINEERING
BAM INTERNATION
- MACWEB 3,000 m2
- MACDRAIN™ W 12,500 m2
MACMAT HS 6,000 m2
- DT MESH HS 3,000 m2
11/2018 - 04/2021

211
210
5
GROSS FIELD DEVELOPMENT
A wall construction in a harsh local climate
2018
Republic Of Sakha, Yakutia, Olekminsky Ulus, Russia
Republic Of
Sakha
Gross Mining and Processing Plant (MPP) is the
new main gold mining facility of Nordgold in Russia.
The mine commissioning in 2018 confirmed the
Nordgold status as the industry leading constructor
of state-of-the-art gold mines.
One of the main stages of ore preparation is its
processing at crushing and dresser facility. To
ensure the access of heavy dump trucks to the
ore discharge zone of Gross MPP coarse crushing
facility, taking into account the site geomorphology,
it was necessary to install high retaining walls
adjacent to the crushing facility. The main issue
complicating the wall construction was the harsh
local climate, with a winter season of 7 moths
and January temperatures that can drop up to
-55° C, determining a short construction season.
Furthermore, the infrastructure of the region is
poorly developed, the facility is located in remote
areas, which made it impossible to use reinforced
concrete for this project. Low temperatures would
negatively impact building materials, and poor
transport accessibility and a short construction
season would only increase construction costs and
delay time.
Client:
Contractor:
NORDGOLD COMPANY
SPB - GIPROSHAHT LLC
MACCAFERRI GABION™S CIS LLC
TERRAMESH™ SYSTEM 1,360 pcs - GABION™S 56 pcs - RENO MATTRESSES 43 pcs
03/2018 - 10/2018
Our solution
Specialists of the general design organization LLC
SPb - Giproshakht in cooperation with the designers
of MACCAFERRI, developed the retaining walls
design using the TerraMesh™ soil reinforcement
system. This system was selected basing on its
following advantages:
• Economic efficiency of TerraMesh™ soil
reinforcement system is 20% or higher versus
the traditional reinforced concrete retaining walls
and sheet piling, depending on the height and
length of a structure;
• Local rock material was used for the construction;
• Installation of the system is simple and quick,
because does not require skilled labor and heavy
equipment;
• The wall can be constructed at low temperatures
using dry masonry;
• The wall can be erected in confined area;
• The technology allows to reduce the construction
time up to 3 times;
• Walls built using the TerraMesh™technology
have high bearing capacity and are durable;
• The wall is able to accommodate local
deformations without compromising its reliability
and durability.
• The finished structure is twenty-eight-meter
embankment with soil reinforcement consisting
of three layers (lower layer – 10 m, middle one –
10 m and upper one – 8 m) and divided in height
by two intermediate berms with 1.5 m width.
The local materials were used to construct the
TerraMesh™ soil reinforcement system for coarse
crushing facility access road. It triply accelerated the
construction rate and reduced construction costs.
Other than the TerraMesh™system, the finished
structure also includes the use of the following
Maccaferri’s products: the Reno mattresses®;
Geosynthetic grids Paragrid™ and Paralink™; Rock
material for Gabion™ structures filling.

213
212
Sikkim came into existence as a state of India in
1975. Due to its land locked scenario, the state of
Sikkim was only approachable by road. By virtue
of its lush green topography, with a wide variety
of flora-fauna and presence of Himalayas, it had
always been a place of tourist attraction.
The site of the proposed airport at Pakyong was
on a hilly terrain having valleys and spurs with an
acquired area of around 200 acres. Since a plane
surface (min. 150 m wide) was required for the
construction of structures, cutting of uphill portion
had to be done and the same material had to be
filled at downhill portion to get the required level
of runway. The constraint that material from the
cutting had to be used in filling was mandatory.
Furthermore, Sikkim receives a very high annual
rainfall. Due to heavy rainfall intensity, storm water
drain was one of the important aspects of this
project.
Finally, it was also highly required by the client
Airport Authority of India (AAI) to have an eco-
friendly solution on cutting side, as this area is
direct visibility from runway and terminal building
and the construction couldn’t have adverse impact
on the environment and local habitat.
Pakyong
MACCAFERRI SOLUTIONS FOR CONSTRUCTION
OF NEW AIRPORT AT PAKYONG, SIKKIM
The 2012 international ground engineering project of the year
2018
Pakyong, Sikkim, India
5
Aerial view of Pakyong Airport/Source: Airport Authority of India (AAI) - VDR
Client:
Contractor:
AIRPORTS AUTHORITY OF INDIA (AAI)
PUNJJ LIOYD LTD AND MACCAFERRI
MOTT MCDONALD INDIA PVT LTD
2009 - 2018
Our Solution
For the project the uphill portion of the slope was
cut and used for the filling operation to get the
required leveled platform of the airport runway.
To retain the fill within the Airport boundary on
valley side, TerraMesh™ retaining structure of height
varying from 4 to 80 m were planned. ParaMesh
system was adopted for construction of retaining
structures. Paralink™ as a primary reinforcement of
grades varying from 200 to 800 were introduced in
the soil mass to retain the soil vertically or at steep
slope by virtue of interaction between soil and
reinforcing elements. To prevent sloughing failure
of the facia and to achieve improved compaction,
TerraMesh™ Green , TerraMesh™ or a combination
of both were used depending on space availability
and need for taking a concrete culvert through.
At the end of the construction, these ParaMesh
structures were the highest among the “Reinforced
steep slope“ structures in world.
Furthermore, on the 18th of Sep 2011, Sikkim was
reached by high intensity earthquake during which
most of other infrastructure got severely damaged,
ParaMesh structures of this project performed
excellent owing to their flexible nature, though the
seismic event happened was theoretically more
than the magnitude for which these structures
were designed.
Owing to the environmentally friendly and
sustainable reinforced fill structure, the airport
authority of India won the prestigious Greentech
CSR award in 2011. Also in 2012, the project won
the prestigious international ground engineering
award as project of the year.

215
214
Toraja Airport, formerly Buntu Kunik Airport, is
an airport at Mengkendek, Tana Toraja Regency,
South Sulawesi, Indonesia. It was built to replace
the Pongtiku Airport, which was closed due to
lack of land for expansion to cope with increasing
passenger demands.
The new airport runway is 2 km long and
approximately 210 m wide, suitable for ATR
type aircrafts. Since a plane surface is required
for the construction of the runway, and due to
the presence of hills and spurs clashing with the
runway area, massive cut and fill heart works had
to be undertaken in order to get the required level
of runway. Thus, the filling soil had to be retained
with technically suitable and economically feasible
structures. It is worth to note that the maximum
embankment height to be retained is almost
40m. The main technical constraints had been:
the high seismicity of the area, the heavy rainfall
encountered every year and the presence of clay
shale foundation soils. Clay shales were originally
dry and hard with high shear strength, but if they
absorbed water during the unloading process, they
could have rapidly turned to stiff or even to soft clay
with extremely low shear strength. For this reason,
excavation and construction operations required
noteworthy care and adequate planning in order to
minimize the exposure of the foundation soils to
weathering agents.
4
Tana
Toraja
PARAMESH WALL OF TANA
TORAJA AIRPORT
The construction of a new and bigger airport
2016
Tana Toraja, South Sulawesi, Indonesia
5
Client:
Contractor:
MINISTRY OF PUBLIC WORKS
PT. BREMA
PT. BINTANG ARAFFA
10/2015 - 01/2016
Our Solution
Different types of retaining structures have been
considered during the design stages: traditional
concrete walls, bored piles and hybrid MSE walls
(Paramesh). The evaluation criteria have been:
• permeability: the retaining structures had to
have a very permeable facing in order to rapidly
drain the rainfall waters and to dissipate the
hydrostatic pressure developed in the backfilling
soil;
• flexibility: the retaining structures had to have
a flexible behavior in order to accommodate
potential differential settlements and to absorb
dynamic shocks;
• construction time/schedule;
• overall cost.
Based on all the above criteria, Maccaferri hybrid
MSE structures (DT + Paralink™) have been
selected as the best solution. In October 2015,
the construction of the first Paramesh retaining
structure using Maccaferri products started. It has a
maximum retained height equal to 25 m, distributed
in 5m high berms. The berms are realized using
both TerraMesh™ System and TerraMesh™ Green
elements (60 degrees). The primary reinforcements
are Paralink™ geogrids having an ultimate tensile
strength equal to 300 kN/m.

217
216
ShenNongJia is in northwest Hubei province, it
has the only virgin forest in the middle latitudes of
the world and is known as “the world’s ecological
treasure house”. With the advancement of the
construction of the eco-tourism circle in western
Hubei, ShenNongjia Forest Area, one of its core
sectors, urgently needed fast and convenient
access and exit, which led to the construction of
ShenNongjia Airport.
The challenge derived from the fact that the
ShenNongjia Airport is located at a high-altitude
ridge in the forest area, filled with super-high fill
areas in the field, and the height difference of the
highest fill area is nearly 50m. Due to the limitation
of geomorphological conditions, natural grading
would occupy a large amount of land and cause
great damage to the forest ecosystem. However,
using a traditional support structure, would not only
make it difficult to design and construct, but would
also need extremely high basic requirements, and a
large amount of foundation treatment would have
to be carried out.
ShenNongJia
HUBEI SHENNONGJIA AIRPORT
TERRAMESH™ RETAINING WALL PROJECT
A fast access to the world’s ecological treasure house
2012
ShenNongJia, Hubei China
5
Our solution
Relying on Maccaferri’s rich experience in handling
super-high fill engineering and drawing on similar
cases of super-high fill engineering all over the
world, a tall composite reinforced soil structure
scheme was finally selected. By setting a face-to-
wall slope ratio of 1:0.25, which is nearly vertical,
the occupation of the retaining wall was greatly
reduced, as the filling amount of the project, and the
damage to the ecological environment of the forest
area was minimized as much as possible.
In terms of foundation, the reinforced soil structure
had relatively low requirements for the foundation,
which were met by setting up a masonry base,
eliminating the need for complex foundation
treatment procedures and high treatment costs.
In terms of ecological greening, by making full use
of the ecological characteristics of the TerraMesh™
system, and by setting greening measures such
as geotextiles on the face walls, it was easy to
restore vegetation and minimize the impact on
the ecological environment of the forest area due
to engineering construction, which fitted perfectly
with the concept of green and environmentally
friendly airports.
Client:
Contractor:
BEIJING JINGGANG AIRPORT CONSTRUCTION CO. LTD.
CIVIL AVIATION NEW ERA AIRPORT DESIGN INSTITUTE GUANGZHOU BRANCH
BEIJING CHINA AVIATION PORT CONSTRUCTION ENGINEERING CO., LTD.
07/2011 - 09/2012

*TERRAMESH™, PARAGRID™, MACDRAIN™, MACTEX™, PARALINK™, STEELGRID™, GABION™, MACGRID™, PARADRAIN™ ARE A TRADE MARK OF OFFICINE MACCAFERRI SPA, REGISTERED
IN SOME COUNTRIES, WHICH ARE PROTECTED UNDER THE APPLICABLE LAWS
Officine Maccaferri S.p.A.
Via J.F. Kennedy, 10 | 40069 Zola Predosa (Bologna) - Italy
T: + (39) 051 643 6000 | E: info@hq.maccaferri.com
maccaferri.com

MACCAFERRY GUIA GAVIONES TERRAPLENES EN ESPAÑOL

More Related Content

Similar to MACCAFERRY GUIA GAVIONES TERRAPLENES EN ESPAÑOL (20)

Recently uploaded (20)

MACCAFERRY GUIA GAVIONES TERRAPLENES EN ESPAÑOL