GEI - Excavation Support

The excavations can be supported using internal bracing, top down construction where the building floors act as bracing or external bracing such as tiebacks. GEI combines empirical experience with sophisticated computer modeling to evaluate the impacts of the SOE system on adjacent facilities. Using geotechnical instrumentation during construction allows the project team to evaluate actual versus predicted performance of a system and make adjustments to benefit the project.

GEI has designed excavation support systems and cofferdams for construction of numerous tunnels, buildings, and other civil works projects. Types of support systems have included but are not limited to cantilever walls, simple braced excavations, tie-back anchored excavations; open-water cofferdams, braced cofferdams constructed in conjunction with existing structures, and pre-stressed bracing for structures sensitive to movements.