Mod subaqueous flowtite
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This document discusses the subaqueous installation of fiberglass reinforced plastic (FRP) pipes. It describes how FRP pipes are used for applications like wastewater outfalls, cooling water intakes and outfalls, and submarine crossings. It outlines the site supervision services provided during installation and different installation techniques like single pipe, multiple pipe, and preassembled pipe strings. Joint systems, trench excavation, alignment, backfilling and transition zone installation are also summarized. Several case studies of subaqueous FRP pipe installation projects are provided.
Mod subaqueous flowtite
- 1. Subaqueus Applications with Flowtite Pipes Manufacturing Meeting, Spain, January 2005 1 Manufacturing Meeting, Spain, January 2005
- 2. Pipe laminate structure EXTERIOR EXT. SURF. SKIN CORE TOTAL THICKNESS SKIN LINER INT.SURF. INTERIOR 2 Manufacturing Meeting, Spain, January 2005
- 3. Site Supervision service If any request or any requirement, field supervision is provided to achive a satisfactory installation. Field engineers and technicians can advise the purchaser or the installer to help him achieve a satisfactory installation. • Field engineers supervise the installation of GRP pipes, • Follow the errection closely and submit their comments and recommendations to achive satisfactory pipe installation, • Assist to the installer for decision of installation technics and applications, • Assist to project firms for computation and determination of thrust block dimensions, • Field technicians assist the workers to achieve satisfactory coupling joint and backfilling. 3 Manufacturing Meeting, Spain, January 2005
- 4. Subaqueous Installatıon of GRP Pipes GRP pipes are used for subaqueous applications such as; Waste water outfall, Cooling water outfall, Sea water intake for Drinking water supply, Cooling water supply, Etc... Submarine crossing. 4 Manufacturing Meeting, Spain, January 2005
- 5. Pipe Joint Systems GRP TEST COUPLING JOINT Coupling Joint is a flexible joint system. GRP lock couplings allow angular deflections. Allows preliminary check for each joint under water 5 Manufacturing Meeting, Spain, January 2005
- 6. Pipe Joint Systems Marine Harness Lug Marine harness lugs are used to keep together preassembled pipe strings of several pipes during loading, transfering, and sinking operations and also to assist divers for joining operation under water. Depending on pipe diameter two, three or four pieces of marine harness lugs are fixed surrounding the ends of the pipes. It is recommended to remove stud bolts before backfilling in order not to prevent flexibility of GRP couplings. Steel lugs are fixed with filament winding method using glassfiber &resin 6 Manufacturing Meeting, Spain, January 2005
- 7. Trench Excavatıon & Backfıllıng - Excavator, dredger or trencher is used for excavating the trench. - Excavator or clamshell bucket or flex tubes are used for backfilling. 7 Manufacturing Meeting, Spain, January 2005
- 8. Subaqueous Installation Techniques Depending on project requirements and site or weather conditions different installation techniques are used. Single pipe installation Multiple pipe installation Multiple pipe installation, providing pipe string 8 Manufacturing Meeting, Spain, January 2005
- 9. Subaqueous Installation Techniques Single Pipe Pipes are lowered to water and joined under water one by one, 9 Manufacturing Meeting, Spain, January 2005
- 10. Subaqueous Installation Techniques Multiple Pipes Two or three section of pipes are preassembled on land or barge then lowered to water and joined under water, 10 Manufacturing Meeting, Spain, January 2005
- 11. Joining of Pipes under Water Generally, come along jacks with steel clamps are used for joining of pipes. Depending on marine conditions marine harness lugs are used to join the pipes under water. 11 Manufacturing Meeting, Spain, January 2005
- 12. Pipe Alingment while Joining Depending on project reuirement, marine and weather conditions different equipments are used for alingment of pipe ends to join. Steel Truss Hydraulic Sea Horse Specail GRP Coupling 12 Manufacturing Meeting, Spain, January 2005
- 13. Trench Backfilling Excavator or clamshell bucket or flex tubes are used for backfilling. Backfilling is provided by the divers under water. 13 Manufacturing Meeting, Spain, January 2005
- 14. Subaqueous Installation Techniques MULTIPLE PIPES PROVIDING PIPE STRING Long pipe sections (100m-300m-500m...) are preassmbled on land or barge and lowered to water and joined under water. 14 Manufacturing Meeting, Spain, January 2005
- 15. TOW Techniques Depending on shape of the sea bottom, weather conditions and adequacy of equipment different tow methods can be selected. • Surface tow float and sink sub surface tow • Controlled depth tow off-bottom tow bottom pull Manufacturing Meeting, Spain, January 2005
- 16. Onshore-Offshore Transition Zone Sand bags may be used to prevent floating of pipes and washing out backfill from wave actions. 16 Manufacturing Meeting, Spain, January 2005
- 17. Onshore-Offshore Transition Zone Pipes are launched to the sea with different methods as shown on the pictures. 17 Manufacturing Meeting, Spain, January 2005
- 18. Unimar Power Plant Cooling Water Outlet Client : Unimar Enerji Yatırımları A.Ş. Location : Marmara Ereğlisi / Tekirdağ / TURKEY Date : Feb 2005 – June 2005 Capacity : 480 MW Main Contractor : STFA Marine Construction Co. Cooling Water Discharge DN2400mm-600mm, PN6Atm, SN 5000N/m2 L= 240m Manufacturing Meeting, Spain, January 2005
- 19. Biga Autoproducer Power Plant Cooling Water Inlet & Outlet Client : İçdaş Çelik Enerji Tersane Ulaşım San. A.Ş Location : Çanakkale / Biga / TURKEY Date : Sep 2004 – March 2005 Capacity : 102 MW Main Contractor : DETEK Marine Construction Co. Sea Water Inlet & Outfall Pipes DN2200mm, PN6Atm, SN 5000N/m2 L= 196m 19 Manufacturing Meeting, Spain, January 2005
- 20. Adapazarı Gölprizi Drinking Water Project Client : ADASU Genel Müdürülüğü Location : Adapazarı / TURKEY Date : Jan 2005 – continue Main Contractor : ZihniÜstünoğulları İnşaat A.Ş. Lake Water Inlet Pipes DN1600mm, PN6Atm, SN 5000N/m2 L= 1500m 20 Manufacturing Meeting, Spain, January 2005
- 21. Constanta North & Eforie South Wwtp Waste Water Outfall Client : ATHENA SA Construction Co. Location : Constanta / ROMANIA Date : June 2005 – continue Main Contractor : ATHENA SA Construction Co. Waste Water Outlet DN1500mm, PN6Atm, SN 10000N/m2 L= 4250m DN 700mm, PN6Atm, SN 10000N/m2 L= 1360m GRP Test Coupling 21 Manufacturing Meeting, Spain, January 2005
- 22. İskenderun Sugözü Coal Fired Power Plant Investor : STEAG AG Project Company : İSKEN A.Ş. Location : Adana- Ceyhan / TURKEY Project Duration : 2000 - 2003 Net capacity : 1210 MW Main Contractors : Siemens, Babcock, Gama Tekfen JV & Simko Marine Consultant : MECC Marine & Land Eng & Consulting Co. Subcontractor : STFA Marine Cons. Co. Intake Line/ Sea-Pump House DN2800mm, PN6Atm, SN 6500N/m2 L= 1570m Cooling Line/ Pump House-Seal Pit DN2600mm, PN6Atm, SN 5000N/m2 L= 800m Seaoutfall Line/ Seal Pit – Sea DN2400mm, PN6Atm, SN 6500N/m2 L= 4750m Manufacturing Meeting, Spain, January 2005 22