考虑水压效应的基坑边坡稳定性计算分析

地下水的存在给工程带来了巨大的隐患。如何研究分析地下水对工程的作用是地质工程界的一个重点和难点。本文基于地下水的破坏效应,分析研究了地下水引起的接触面积的变化,并推导了饱水情况下平面滑动的临界角变化公式。A* 越小,即越小,发生失稳破坏的临界角就越小。而地下水p的增加有助于A* 的减小,造成了在水压作用下土体更容易发生失稳破坏。

SLOPE STABILITY ANALYSIS FOR FOUNDATION PIT SUBJECTED TO WATER PRESSURE

Ground water is the key factor that does more harm to the foundation pit project.How to analyze and examine the effect of ground water on the project is a challenging and important subject.This paper,analyzes the change of interface with the variety of ground water by taking into account the destruction effect of ground water.It derives the equation to calculate the critical angel of planar slide under saturated condition.When the area of interface A* and are smaller,the critical angel of failure is smaller.However,the increase of ground water pressure can reduce the area of interface A*,which shows the ground water pressure makes the soil mass is easier to fail.