地震模拟振动台基础深基坑支护结构内力计算有限元分析

摘要

以苏州科技大学地震模拟振动台基础深基坑的工程实例为研究背景，采用Abaqus有限元分析软件，建立了地震模拟振动台基础地下连续墙深基坑支护结构内力计算的有限元分析模型，以连续墙墙体厚度及其嵌固深度、支撑数量及位置等为设计参数，建立了9个有限元分析模型，分析、比较了不同设计参数对深基坑地下连续墙支护结构弯矩和位移的影响，得出一些结论，可为振动台深基坑设计和施工提供技术依据。%With the actual construction of deep foundation pit of the earthquake simulation shaking table at Suzhou University of Science and Technology as research background,finite element analysis models were establised to calculate the internal force of the supporting structure of underground diaphragm wall of the deep foundation pit of earthquake simulation shaking table by using the finite element analysis software Abaqus. With the diaphragm wall thickness,embedded depth,support number and position as design parame-ters,nine finite element analysis models were established. Influences of different design parameters on the bending moment and displacement of the supporting structure of deep foundation pit were analyzed and com-pared by using the finite element analysis models. Useful conclusions are obtained,providing a technical basis for design and construction of shaking table′s deep foundation pit.