STUDY ON PORE WATER PRESSRE VARIATION OF DIFFERENT DENSITY LIQUEFIABLE SAND SOIL REINFORCED BY GRAVEL PILE

The author performs the shaking table test of liquefied soil improved by gravel pile, and then analyzes pore water pressure as well as its peak ratio during vibration and dissipation. It is demonstrated that the pore pressure ratio at different buried depths changes with density. The mechanism of liquefied soil improved by gravel pile is discussed, which is related to the density and drainage of sand soil.