某桩基承台挡墙系统安全性有限元分析与研究  

Finite Element Analysis and Research on Safety of Pile Foundation Bearing Platform Retaining Wall System

作　　者：李国强[1] 赵引[1] 黄晓阳[1] 

机构地区：[1]河海大学工程力学系,江苏南京210098

出　　处：《水利与建筑工程学报》2013年第3期99-102,152,共5页Journal of Water Resources and Architectural Engineering

摘　　要：建立大堤和桩基承台挡墙系统的有限元模型,并对其进行线弹性和非线性有限元的应力变形分析,以及桩基承台挡墙系统的稳定性进行分析。结果表明:桩基挡墙系统满足强度要求,但桩顶1.0cm的位移控制要求不能满足;根据结构达到极限平衡状态时的抗剪强度改变倍数确定系统稳定安全度在1.6-1.7之间,表明该工程桩基承台挡墙系统不会发生失稳破坏。研究结果对类似工程有借鉴意义。The finite element model of a dike and its pile foundation bearing platform retaining wall system is set up to calculate the stress deformation based on linear elasticity and nonlinear finite element, and the stability of the system is analyzed by the means of indirect method. The results show that the intensity of pile foundation is qualified, and the degree of safety is in the range from 1.6 to 1.7, which indicates that the system is safe and steady, but the displacement of pile bolck can not meet the requirement of 1.0 cm. The results can be used for the reference of other similar projects.

关 键 词：桩基承台挡墙 线弹性 非线性有限元 稳定性分析 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]