基于Midas对长春市某基坑工程的坑角效应分析

Analysis of corner effect of a foundation pit project in Changchun based on MIDAS

利用Midas GTS有限元软件对长春市某基坑工程桩锚支护体系进行数值模拟,通过对坑角处的支护桩桩顶水平位移进行分析,发现阴角效应与阳角效应的影响范围与基坑的开挖深度存在倍数关系,且当阳角臂长发生改变时,该条臂上的支护桩桩顶变形呈现出两种不同的变化趋势。

Numerical simulation of pile-anchor support system for a foundation pit project in Changchun by MIDAS GTS finite element software,Through analysis of horizontal displacement of supporting pile top at pit corner,It is found that there is a multiple relationship between the influence range of external or internal corner effect and the excavation depth of foundation pit,and furthermore,when the length of external corner arm changes,the deformation of the top of the supporting pile on the arm shows two different variable trends.