液状化地盤における模型群杭の水平載荷実験

概要

論文の詳細を見る
Lateral loading tests on a model pile group are conducted to investigate the seismic performance of pile groups and the coefficient of subgrade reaction in liquefied soil using the large-scale laminar shear box. There are two types of loading tests; the pile head loading and the ground deformation loading. The liquefaction in shear box occurs by upward seepage flow. The followings are concluded. (1) The lateral pressure on the front pile is larger than that on middle and back piles of the pile group in the pile head loading. The difference of the lateral pressure on the each pile is small in liquefied soil. (2) The coefficient of subgrade reaction is decreasing with increasing the pore water pressure in soil deposit. The coefficient of subgrade reaction of the front pile is larger than that of the back pile. (3) The pile deformation obtained in the ground deformation loading is decreasing with increasing the pore water pressure in soil. It is an opposite trend observed in the pile head loading.
社団法人日本建築学会の論文
2003-10-30