RESTORING FORCE AND DEFORMATION OF LARGE-SCALE CONCRETE PILE EMBEDDED INTO COHESIVE SOIL

Abstract

In order to clarify nonlinear interaction between pile and its surrounding soil under seismic load, full-scale monotonic and reversed cyclic lateral loading tests were carried out on concrete piles embedded into the ground. The test results revealed that the lateral load carrying capacity of pile is affected by the piling method and the stiffness degradation of cohesive soil subjected to cyclic deformation. In addition, 3-D finite element analysis was carried out based on the test results. With proper consideration of the above-mentioned factors, the analytical method was found to simulate well the actual behavior of pile-soil system.