In situ desaturation tests by electrolysis for liquefaction mitigation

Electrolytic desaturation is a potential method for improving the liquefaction resistance of liquefiable foundations by reducing soil saturation. In this study, in situ tests were performed to investigate resistivity at different depth and water level foundation under currents. The test results show that constant currents 1, 2, 3 A (ampere, unit direct current), saturation treated reached 87%, 83%, 80%, respectively. During electrolysis process, generated gas migrates vertically horizontally influence buoyancy pressure. end electrolysis, inside sand basically only. higher current intensity employed will affect uniformity stability gas. At A, difference between maximum minimum degree was 14%, 18%, 19%, respectively; after had been halted 144 h, 90%, 85%, electricity consumption analysis indicates has excellent economic benefits treatment saturated foundations.