MODEL OF LATERAL SOIL RESISTANCE FOR SIMPLIFIED EARTHQUAKE RESISTANT DESIGN METHOD OF SHEET PILE QUAY WALL WITH VERTICAL PILE ANCHORAGE

Abstract

 In the technical standards for port and harbours, static force-based method that does not take the effect of deformation of quay walls by earthquake into consideration is applied as a general earthquake resistant design method against the Level-one earthquake ground motion for sheet pile quay walls. It is difficult to evaluate the performance of the quay walls by earthquake precisely by the method. Previous study was undertaken in order to establish the simplified earthquake resistant design method based on the frame analysis for the quay walls. Although the method fairly reproduced the performance of the quay walls, section forces of anchor pile could not be evaluated. This study aims at improving the simplified design method by modifying the lateral soil resistance in front of the anchor pile. Two-dimensional earthquake response analyses were conducted in order to discuss the applicability of the modified simple design method.