降雨要素对填方路基边坡稳定性影响的仿真分析

降雨是引起边坡失稳的主要原因之一,其中降雨强度和降雨历时在边坡稳定相方面起主要作用。基于渗流力学、土力学等理论,考虑不同降雨要素对饱和-非饱和填方路基边坡稳定性的影响,采用Flac3D有限差分软件进行数值模拟,得出不同降雨强度和降雨历时条件下填方路基边坡稳定系数,通过降雨要素与填方路基边坡稳定系数关系的分析,探讨了填方路基边坡的安全性问题,为有效指导路基边坡防护工作提供理论基础和定理依据。

Emulating Analysis of the Effect of Rainfall Essential on Slope Stability

Rainfall is one of the main reasons of slope failure. Rainfall intensity and rainfall duration play a major role in the aspect of slope stability. Based on the theory of percolation mechanics and soil mechanics, considering the effect of different rainfall essentials on slope stability with saturated-unsaturated filled subgrade, the paper used the Flac3D analysis software to carry out numerical simulation, and obtained the filled subgrade slope stability factor with different rainfall intensity and rainfall duration condition. Through analyzing the relationship between rainfall essentials and filled subgrade slope stability factor, the security problem of filled subgrade slope was discussed. The result provided the theoretical and theorem basis for effectively guiding the protection work of subgrade slope.