Reinforcement and Stabilization Mechanisms
Tensile Reinforcement The most fundamental mechanism is tensile reinforcement. As the soil mass tends to deform, relative movement develops between the soil and the geogrid. Interface shear and beari...
Rocscience Inc.'s Technical Workshop: Finite Element Modelling of Underground Excavations begins on Aug 26th 2026
Rocscience Inc.'s Technical Workshop: Finite Element Modelling of Underground Excavations begins on Aug 26th 2026
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Latest News
Century-old New York rail tunnel rebuilt after corrosive flood damage
Amtrak has reopened Line 2 of the East River Tunnel in New York, completing the first major phase of a $1.6bn rehabilitation programme on one of the busiest passenger rail tunnel systems in the Wester...
Deadly 7.7 magnitude earthquake leaves thousands displaced in Indonesia
A powerful 7.7 magnitude earthquake has struck Indonesia’s Flores region, killing at least 53 people, injuring more than 100 and leaving thousands unable to return home. The shallow earthquake hit ear...
Geogrids and the Concept of Reinforced Soil
What Is a Geogrid? A geogrid is a planar geosynthetic product formed by connected tensile members that create a regular or quasi-regular network of openings, known as apertures. It is installed withi...
PLAXIS 3D Study Finds Winged Piles Can Cut Uplift Settlement by Up to 95% in Sandy Soil
A PLAXIS 3D numerical study of under-reamed 'winged' piles in sandy soil has found that adding a wing near the pile tip can cut uplift-induced settlement by up to 95% compared with a conventional stra...
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Industry Section
Combining PLAXIS 2D and 3D Kept the Lueneburg Lock's Century Project Within 4 mm of Its Historic Neighbour
Engineers designing the new Lueneburg Lock in northern Germany used a deliberately complementary combination of PLAXIS 2D and PLAXIS 3D models, rather than a single large 3D model, to control a 30 m d...
A New Versatile Ground Motion Manager: Bringing Target Response Spectrum-Consistent Uni- and Bi-directional Ground Motion Selection into RSSeismic
Ground motion selection is a key part of seismic site response analysis, representing the ground shaking driving the soil column. In preparing for a site response analysis, engineers define the seismi...
Automating Site Response Analysis Workflows with Python-based RSSeismic Scripting
Introduction: Unlocking Automation in Geotechnical Engineering As engineering projects continue to grow in scale and complexity, engineers increasingly rely on automation to improve efficiency, consis...
PLAXIS 2D Dynamic Analysis Shows Hammer-Induced Pore Pressure Can Cut Offshore Monopile Driving Resistance by 62%
A PLAXIS 2D dynamic finite element study of offshore monopile driving has found that excess pore pressure generated by hammer blows can reduce soil resistance to driving by up to 62%, a mechanism the...
Behind the Controls: Learning Helical Pile Installation
When talking about heavy equipment, whether it be a skid steer or an excavator, most people correlate those machines with digging or moving earth. Most do not understand that a skid steer, backhoe, or...
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A circular pit on Google Maps becomes a major geology discovery
A circular feature first noticed on Google Maps has led scientists to identify a previously unrecognised meteor impact structure in remote Quebec. The structure, now named Uhackatik, is reported in th...
Upcoming Events
GeoStudio Remote Getting Started - September 2026
This course is for those who have never used GeoStudio before or have not upgraded to a recent version in a long time and want a refresher. It provides an overview of the basic components of setting u...
Geotechnical Earthquake Engineering - A Berkeley Virtual Short Course Series
UC Berkeley faculty does it again! The "Geotechnical Earthquake Engineering" series is offered from September to November 2026 and consists of three short courses and focuses on key concepts and recen...
International Conference on Geotechnical Engineering | ICGE-Colombo 2026 International Conference on Advances and Innovations in Soft Soil Engineering 2026 Technical Workshop: Finite Element Modelling of Underground Excavations 3rd International Conference on Construction Resources for Environmentally Sustainable Technologies (CREST 2026) From Ground Investigation to Numerical Analysis: A Connected Geotechnical Workflows for Tunnel Design
Publications
Dynamic Studies on the Bearing Capacity of Piles, Final Project Report, Volume 2 Dynamic Studies on the Bearing Capacity of Piles, Final Project Report, Volume 1 Dynamic Studies on the Bearing Capacity of Piles; Phase III Volume II Report No. 48 Pile Load Test by Impact Driving Dynamic Studies on the Bearing Capacity of Piles; Phase II Volume I Report No. 31 Dynamic Studies on the Bearing Capacity of Piles; Phase II Volume 2 Report No. 31 A New Testing Procedure for Axial Pile Strength Dynamic Studies on the Bearing Capacity of Piles; Phase III Volume I Report No. 48 Performance of Pile Driving Hammers Field Demonstration: Response of Instrumented Piles to Driving and Load Testing
Education
Levels of Analysis Used in Retaining Wall Design
The analysis of retaining structures is commonly approached in three progressively more advanced levels, depending on the complexity of the wall system, the ground conditions, and the need to predict...
Pore Pressure and Retaining Wall Drainage
The Critical Role of Groundwater Water is the single most destructive element in retaining wall stability analysis. While designers account for the dry unit weight (γd) or saturated unit weight (γsa...
Tutorial of finding the required depth of embedment of a sheet pile retaining wall using the global factor of safety and the Eurocode 7 approach
A cantilever sheet pile wall supporting a 3.5 m deep excavation in dry sand (γdry = 15.3 kN/m³, φ′ = 35°, c′ = 0) is to be constructed. Determine the required depth of embedment. 1. By using the...
Sheet Pile Wall Design
A sheet pile wall is a line of interlocking thin wall elements driven into the ground to form a continuous barrier that can retain soil and/or water. Stability comes from penetration below the exc...
Tutorial Exercise
Design for a cantilever retaining wall supporting 3.0 m of dry sand backfill. The wall has a 3.20 m base (1.00 m toe, 1.90 m heel), a 0.30 m thick stem, and a 0.45 m thick footing; concrete unit wei...
Geotechnical Stability Analysis of Retaining Walls
The geotechnical stability of a retaining structure is assessed using limit equilibrium methods, which determine the ratio of available resisting forces/moments to the driving forces/moments. This ra...
Lateral Earth Pressure States and Coefficients
Introduction to Lateral Earth Pressure Soil, unlike a true fluid, exhibits both density and internal friction (φ) and cohesion (c). Consequently, the pressure it exerts horizontally on a retaining s...
Log stratigraphic analysis of dynamic penetrometric tests
By Antonio Di somma, 30 Nov 2024
Evaluation of Groundnut Shell Ash (GSA) as a Sustainable Material for Soil Stabilization in Construction20 Nov 2024
simulation geogrid (geotextile)By Milad Sabouri, 02 Nov 2024
Books
Geotechnical Earthquake Engineering
This fully updated second edition provides an introduction to geotechnical earthquake engineering for first-year graduate students in geotechnical or earthquake engineering graduate programs with a l...
2024 Geotechnical Business Directory
This unique annual business directory is published by GeoWorld, the professional network for geotechnical engineers, which currently includes 37,000+ professionals and 1,000+ companies and organizatio...
2025 Special Edition USA & Canada Geotechnical Business Directory
This unique annual business directory is published by GeoWorld, the professional network for geotechnical engineers, which currently includes 40,500+ professionals and 1,100+ companies and organizatio...