In our role as project geotechnical engineer, GEODesign performed a subsurface exploration consisting of five borings and the installation of one groundwater monitoring well. We developed recommendations for seismic design, foundation support, temporary and permanent groundwater control, support of adjacent buildings during construction, and other geotechnical considerations. We also prepared design plans and specifications for a support-of-excavation (SOE) system.
The Solutions Unearthed
- We provided a geotechnical evaluation report that included recommendations for foundation design and construction as well as recommendations to support and protect adjacent on- and off-site improvements during below-grade construction.
- Our analyses indicated that the site soils were suitable for direct foundation support, eliminating the need for costly deep foundation elements such as driven piles or drilled shafts. Mat foundations bearing on the firm natural soils were recommended.
- We designed an SOE system consisting primarily of soldier piles with lagging and tiebacks. A secant pile wall system was utilized to protect an adjacent structure during foundation construction.
- SOE design also included underpinning the foundations of the existing school building.
Client: Village Community School