摘要
本文通过弹塑性有限元模拟基坑开挖过程,计算土体的位移及应力,利用Dijkstra最短路径算法确定土体中最危险的潜在破裂面及基坑的稳定性。文中较详细地叙述了这种基于有限元分析技术和组合优化法来确定土坡中最危险的潜在破裂面的原理和实施过程,并给出了计算实例。文章最后对这种方法作出了讨论。
This thesis uses elastic- plastic FEM to simulate the foundation excavation, and then calculate the stress and displacement, and test the stability of the most dangerous latent rupture by Dijkstra. The principle and execution of this method in detail are described, which is based on FEM and combined optimization and the most dangerous latent rupture plane in slope is determined. A calculation example for real work is shown. In the end of this thesis, the conclusions on this method are given.
出处
《地下空间与工程学报》
CSCD
2005年第6期867-869,902,共4页
Chinese Journal of Underground Space and Engineering
关键词
基坑
破裂面
最短路径
有限元
foundation pit
rupture plane
shortest path
FEM
