The effect of fluctuating pore pressure to geotechnical strength during screw pile installation and testing

Screw piles is an economical deep foundation system in construction sites involving cut and fill methods. With imported fills overlying high-bearing capacity layers or where in-situ layers are of low bearing capacity, screw piles can extend the load transfer mechanism from the top low-bearing capacity layer to the lower stronger layers thus distributing stress and minimizing strain. This results in minimal soil settlement and therefor post-construction movements in buildings are mitigated. The main benefits of screw pile foundations include shorter turnaround time, ease of installation, ease of access and removal when foundations are no longer required.