地下水对边坡稳定性作用的动态效应

Dynamic effect of groundwater action on the stability of slopes

本文分析了地下水对边坡稳定性的影响。考虑到边坡岩体内地下水动态变化,提出了用有限单元法计算、评价边坡稳定性。根据文章中建立的边坡稳定性系数与地下水位之间的关系,可作出边坡稳定性的动态预报。算例表明,次降雨对边坡稳定性影响存在着迟后现象。

In this paper, the influence of groundwater to the stability of slopes is analysed. Considering the fluctuation of groundwater table in the slope rock mass, it presents a finite element method to assess the slope stability. Based on the relation of slope stability coefficient with the groundwater table established in this paper, we can make the dynamic forecast of the slope stability. The case history shows that, a one—time continual rainfall presents a laggihg influence to the slope stability.