LATERAL RESISTANCE OF PILE FOUNDATION DURING SOIL LIQUEFACTION ESTIMATED BY CENTRIFUGE AND BLIND TESTS

Abstract

Blind tests by seismic deformation method, dynamic analysis using 2D-finite element method, and dynamic one using Penzien model were performed to centrifuge test of lateral resistance of pile foundation during soil liquefaction. The test results showed that 1) the pile stresses estimated by seismic deformation method were larger than the observed ones, 2) the pile stresses estimated by 2D-finite element method and Penzien model were different from each other, because of differences between the deformation characteristics of the liquefiable soil models, 3) it was effective in improvement of analysis precision, to take into consideration fixation degree of the pile head.