SHAKING TABLE TEST OF A LARGE-SCALE MODEL ON THE DAMAGES OF CAISSON-TYPE QUAY WALL AND PILE FOUNDATION DUE TO LIQUEFACTION-INDUCED LATERAL SPREADING

Abstract

  To investigate liquefaction-induced lateral spreading and its influence on the failure of structures, the shaking table test of a large-scale model of the liquefiable deposit with caisson-type quay wall and pile-supported structure was performed at the E-Defense. To the model, motions based on the 1995 Hyogoken-Nambu earthquake record were applied, producing liquefaction and lateral spreading of the deposit. The motions also made the caisson's movement and the backfill's large deformation. Such behavior caused the waterside piles bent at the same depth of the caisson's mound. The result explained the effects of inertial force and ground deformation on the behaviors of the caisson and structure.