Cyclic Lateral Loading of Small Scale Piles on a Centrifuge

摘要

This is an interim report on the progress made with the cyclic lateral load loading of small scale piles on the Centrifuge. Equipment has been developed to enable cyclic lateral loads to be applied to a model pile while being subjected to centrifugal accelerations. Direct measurement may be made of the displacement and rotation of the pile head and with instrumented hollow tube piles, bending strains may also be measured to indicate shear force and bending moment distributions down the pile. Preliminary testing has verified the scaling laws for tests on piles embedded in sand and that measurements of load, moment, deflections and rotation of the pile head are of sufficient accuracy to enable useful interpretation of the interaction between soil and pile. This report sets out the background to this research project and discusses the equipment developed. Some preliminary results from a major series of tests are reported and some tentative conclusions drawn. Suggestions for modifications to the equipment are made.