基于FLAC3D的并排式桩板墙的动力响应分析

Dynamic Response Analysis of Side-by-Side Pile Slab Wall Based on FLAC3D

摘要: 地震滑坡往往造成重大灾害，桩板墙作为重要的边坡防护结构，研究其抗震性能具有重要的工程意义。本研究依托项目工程，基于FLAC3D有限差分软件，对简化的模型从横纵两个维度，研究桩板墙的桩后加速度、土压力、位移的分布规律。结果表明加速度，位移沿桩身有明显的放大效应，相对于桩的变形，桩体更倾向于发生倾覆破坏。加速度，位移最大值在不同强度地震波作用下成倍数变大，土压力最大值在不同强度地震波作用下有明显的上移趋势。该研究对于桩板墙的工程实际应用以及对后续桩板墙结构研究提供参考。

Abstract: Earthquake landslides often cause major disasters.Pile-slab wall is an important slope protection structure,It is of great engineering significance to study its seismic performance.Relying on the project and based on FLAC3D finite difference software, this study studies the distribution law of post-pile acceleration, earth pressure and displacement of the pile-slab wall from the horizontal and vertical dimensions of the simplified model.The results show that the acceleration and displacement have obvious amplifying effect along the pile body, and the pile is more inclined to overturn than the pile deformation.The maximum acceleration and displacement increase exponentially under the action of seismic waves of different intensities, and the maximum earth pressure has an obvious upward trend under the action of seismic waves of different intensities.This study can provide reference for the practical application of pile slab wall and the subsequent study of pile slab wall structure.