Research on Lateral Dynamic Response of Pile Foundation in Liquefiable Soil based on Non-liner Pseudo Static Analysis Method

Abstract

In this paper, the author discussed the lateral dynamic response of pile foundation in liquefiable soil based on non-liner pseudo static analysis. Modified model of dynamic p-y curves of pile foundation in liquefiable soil layer are proposed and its reliability are also verified. The basic form of main trunk circuit of pile p-y curve is gained and the difference and connection with the p-y curve in API Code is got through the study on the influencing factors, modification method and mode of the new model construction of the p-y curve in liquefiable soil strata. Using double-parameters modified method construct a new computational model. The new formula overcome shortage of rapid rise of soil-pile interaction force within the deformation is small. The reliability of the new formula is verified through shaking table test in this paper.