深基坑开挖过程的弹塑性数值模拟

根据深基坑工程所具有的特点和相应的力学效应，介绍了考虑开挖和支护过程的非线性有限元计算方法，对某一地下连续墙支护的基坑工程进行了数值模拟，分析了地面、基坑边缘、墙体的变形情况，经证明，计算结果比较理想。

The elastic-plastic numerical analogy for deep excavation process

The characters and mechanical property of deep excavation process are illustrated, the compute mode of excavation lode is derived according to the behavior of soil and structure interaction. Through numerical computations for an example of the foundation pit excavation, the distributions of earth behind and in the front of pile wall along the depth and their variations during the excavation of foundation pit are examined. It is indicated that the proposed model can rationally simulate the relationship of the foundation pit excavation.