“两墙合一”中地下连续墙与桩基处于不同土层时地基沉降有限元分析

Dual Purpose Diaphragm Wall's Settlement Analysis by FEM Method When Wall and Pile Are in Different Soil Layer

通过一个位于上海软土地基上典型的"两墙合一"工程实例,运用有限元软件分析了当地下连续墙和桩基处于不同压缩模量土层时,地基基础在上部荷载作用下的变形差异;以及此变形差异会对结构的应力、变形产生的影响,最后提出改进措施。

In this article, based on a typical dual purpose diaphragm wallproject with diaphragm wall and piles lying on different soil layer, a finite element mode is built and analyzed. Through FEM ana- lyze, this article find out the deformation difference of walls and piles and its consequence to struc- ture＇s stress and deformation. Finally ,this paper puts forward the improvement measures.