Performance of passive site remediation and pile group foundations subjected to seismically induced lateral spreading

摘要

This paper presents a series of centrifuge tests studying the performance of pile foundations prone to lateral spreading and the possible use of colloidal silica as an innovative non-disruptive stabilizing material against liquefaction-induced hazards. The presented results showed that colloidal silica grout provided significant liquefaction resistance reducing the free field lateral deformation and significantly decreasing the measured moments along the piles.