LARGE-SCALE SHAKE TABLE TESTS ON LATERAL SPREADING OF SHEETPILE QUAY WALL AND ITS CENTRIFUGE SIMULATIONS

Abstract

  Shake table tests of two large-scale models with liquefiable deposit on lateral spreading are performed to reveal the failure mechanism of sheet-pile quay wall and pile foundation. These tests simulate the lateral spreading behavior of the deposit with slow rate of ground deformation. The test results also indicate that deposit's residual deformation induced by cyclic motions and structure's inertial force influence largely the deformations of the pile foundation. In order to reproduce the lateral spreading phenomena observed in the large-scale shake table tests, centrifuge tests of small models are conducted. The centrifuge tests are effective in respect of prediction of the lateral spreading phenomenon.