Choosing the right tunnelling method for construction

Our GeoFlex System is a vital tool for remote monitoring and data logging for critical applications in construction control. This includes early detection of slope failure, tracking ground movements caused by tunnel construction and excavation, and monitoring deformations of embankments and retaining walls. To discover more about the GeoFlex Advantages: ➡️ https://bit.ly/41Rp9CE #GeoFlex #inclinometer #geotechnical #geotechnicalengineering #civilengineering #monitoring

Earth pressure balance (EPB) shield tunneling in sandy cobble strata often encounters muck stagnation, severe tool wear, difficulties in chamber pressure control, and low excavation efficiency. To this aspect, this study by Yao et al. (2025) published in Underground Space Journal proposes a novel gradient stress construction strategy based on rigid wall boundaries by integrating the finite difference method (FDM) and the discrete element method (DEM). This study provides new insights for optimizing cutterhead and chamber design, offering significant implications for enhancing the efficiency of shield tunneling construction. https://lnkd.in/gjNDRj94 #EPBshield #SandyCobble #SpatialMotion #ForceTransmission #Tunneling #Geotech #GeotechnicalEngineering #CivilEngineering

Check out the impressive use of coupled FLAC3D and PFC3D models in "Spatial motion patterns and force transmission characteristics of muck particles in EPB shield tunneling: An FDM-DEM coupling analysis". This study was published by Yuxiang Yao et al., (Jiaotong University, China) in the Underground Space journal and, as described by Atma Sharma, offers new insights for optimizing cutterhead and chamber design, offering significant implications for enhancing the efficiency of shield tunneling construction. #EPB #EPBshield #CutterHead #ChamberDesign #ShieldTunnelingConstruction #Tunneling #Tunnelling #GeotechnicalEngineering #CivilEngineering #FLAC3D #PFC #FDM #DEM #CoupledModels #JiaotongUniversity #ITASCA

𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗦𝘂𝗿𝘃𝗲𝘆 & 𝗜𝗻𝘃𝗲𝘀𝘁𝗶𝗴𝗮𝘁𝗶𝗼𝗻 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 We deliver high-precision survey and geotechnical services to support hydropower and infrastructure projects. Our expertise ensures that design parameters are based on reliable, site-specific data. 𝗚𝗲𝗼𝗹𝗼𝗴𝗶𝗰𝗮𝗹 𝗠𝗮𝗽𝗽𝗶𝗻𝗴 – Structural and lithological mapping to identify formations, fault zones, and potential geohazards. 𝗖𝗼𝗿𝗲 𝗗𝗿𝗶𝗹𝗹𝗶𝗻𝗴/𝗚𝗲𝗼𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗗𝗿𝗶𝗹𝗹𝗶𝗻𝗴 – Borehole drilling with core recovery, SPT (Standard Penetration Test), permeability test (Lugeon/Packer) and laboratory testing for soil and rock characterization. 𝗗𝗖𝗣𝗧/𝗖𝗣𝗧 – In-situ cone penetration testing and dynamic probing to evaluate soil resistance, stratigraphy, and bearing capacity. 𝗚𝗲𝗼𝗲𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗮𝗹 𝗣𝗿𝗼𝘀𝗽𝗲𝗰𝘁𝗶𝗻𝗴 – Subsurface profiling and groundwater assessment using resistivity methods for foundation and seepage studies. 𝗧𝗼𝗽𝗼𝗴𝗿𝗮𝗽𝗵𝗶𝗰 𝗠𝗲𝗮𝘀𝘂𝗿𝗲𝗺𝗲𝗻𝘁𝘀 – High-accuracy GNSS, total station, and drone surveys for detailed terrain and elevation modeling. 𝗔𝗲𝗿𝗶𝗮𝗹 𝗦𝘂𝗿𝘃𝗲𝘆/𝗟𝗶𝗗𝗔𝗥 – Advanced remote sensing to generate high-resolution digital elevation models (DEM) and orthophotos. By integrating these methods, IHG provides comprehensive datasets that reduce design uncertainty, optimize project planning, and support long-term project sustainability. #Hydropower #Geotechnical #Surveying #LiDAR #RenewableEnergy #IndonesiaHydro

Anchoring landslide risks in place! ⛑️ See how optical measurement technology accurately reveals the superior performance and optimization potential of lattice anchor systems in slope reinforcement. This high-precision model test recorded critical data on full-scale strain and deformation, demonstrating how technological innovation can empower geotechnical engineering safety. #GeotechnicalEngineering #SlopeStability #ExperimentalMechanics #StructuralHealthMonitoring #OpticalMetrology

Do you know how engineers precisely optimize landslide prevention strategies in the lab? ⛑️ This video shows a fascinating moment captured using full-field strain measurement technology! The answer lies in every subtle change in the strain field. #Engineering #TestAndMeasurement #Geotechnical

GEOTECHNICAL FIELD INVESTIGATION FOR COMPLEX HILLSIDE TERRAIN GMU's team of engineers and geologists is conducting multiple geotechnical field investigations in Chino Hills and Anaheim Hills to evaluate the extent of landslides and adverse geology on proposed residential developments. Pictured here, we're using a bucket auger rill rig to assess subsurface conditions, study the geology, and design long-term slope stability solutions that will facilitate future development. One of GMU's geologists is shown descending into a borehole to log the subsurface geological conditions and assess the depth of landslides. The next phases of our studies will include lab testing, geotechnical analysis, and stabilization designs to accompany grading and development plans. We love tackling complex projects where we can put our diverse range of expertise to use! Learn more about our integrated geotechnical and structural solutions at www.gmugeo.com Proudly serving California's built environment with deep roots, expert insight, and reliable service. ASCE Orange County ASCE OC Geo-Institute ASCE Orange County BIA Orange County Chapter  #GeotechnicalEngineering #StructuralEngineering #ConstructionTesting #CaliforniaInfrastructure #EngineeringExcellence Calgeo 

📢 Publications related to 🏗️Structural Resilience: Moving Beyond Survival to Recovery Traditional seismic design keeps buildings standing during earthquakes — but often leaves them damaged, unusable, and costly to repair. Our latest study, published in the Journal of Constructional Steel Research (link ), presents the Self-Centering Disc Slit Damper (SC-DSD) — an innovative device that: ✔️ Combines steel slit dampers with prestressed disc springs ✔️ Provides flag-shaped hysteresis with negligible residual drift ✔️ Achieves 65% higher load-bearing capacity than conventional slit dampers ✔️ Offers a compact, reusable, and sustainable solution for seismic retrofitting By integrating self-centering techniques, SC-DSD bridges the gap between safety and resilience — helping structures not just withstand earthquakes, but quickly recover. Grateful to my co-authors Yusuke Maida, Kusunoki Koichi, and Mohammad Mahdi Javidan, and the Earthquake Research Institute, University of Tokyo. #StructuralResilience #SeismicDesign #EarthquakeEngineering #Innovation #Sustainability #selfcentering #seismicresilience #lifecyclecost https://lnkd.in/dJDCGcer

Foundation certainty starts with more than data — it starts with interpretation. At Flores Geotechnical, our veteran engineers provide the ground truth that keeps designs reliable and constructible: Cores and photo logs that reveal real subsurface conditions. Accredited lab testing that delivers defensible design parameters. Decades of experience interpreting how clays, sands, gypsum seams, and karst voids affect performance. Because every TxDOT project — from pavements to bridges to MSE walls — depends on the soils beneath. And data alone isn’t enough. What matters is knowing what it means for design. #TxDOT #BridgeDivision #TransportationInfrastructure #CivilEngineering #GeotechnicalEngineering #TexasInfrastructure

🚧 What if the biggest threat to a bridge isn’t just its strength, but its shape? 🌉 This captivating question fueled my Master's thesis, where I explored a crucial gap in global seismic assessment codes: the often-overlooked impact of deck curvature and irregular pier heights on a bridge's stability. Driven by curiosity, I dove into non-linear dynamic analysis to model real-world bridge behavior during earthquakes. The findings were nothing short of thrilling! 🔍 The position of the shortest pier is key to a bridge’s vulnerability. A simple tweak in pier configuration can dramatically increase the risk of damage. This small detail has HUGE implications for how we design and retrofit our infrastructure to protect communities from seismic threats! It’s the kind of problem-solving that gets me excited about structural engineering every day. 💡⚙️ I’m eager to connect and share insights with fellow professionals in the field! #CivilEngineering #StructuralEngineering #BridgeEngineering #SeismicDesign #EarthquakeEngineering #Infrastructure #EngineeringUK