基于GeoStudio的小岭后滑坡稳定性分析

Stability Analysis of Xiaoling Post-Landslide Based on GeoStudio

为了保障龙泉市龙南乡蛟垟村居民生命财产安全,对小岭后滑坡进行稳定性研究,为后期的工程防治提供参考依据。运用Geostudio软件对不同降雨工况条件下的渗流场进行数值模拟,计算相应工况下的稳定性系数和失稳概率。该滑坡从整体上来看,为一小型土质滑坡,滑坡区域岩土体工程性质较全省来看属于最差,全年降水量在全省也是排在前列。经数值模拟分析得出,区域内连续集中强降雨是滑坡形成的直接诱导因素,特大暴雨情况下极易发生滑坡灾害。

In order to ensure the safety of life and property of residents in Jiaoyang village,Longnan township,Longquan city,the stability of the Xiaolinghou landslide was studied to provide a reference for later engineering prevention and control.Geostudio software is used to numerically simulate the seepage field under different rainfall conditions,and the stability coefficient and instability probability under corresponding conditions are calculated.On the whole,the landslide is a small soil landslide.The geotechnical engineering property of the landslide area is the worst compared with the whole province,and the annual precipitation is also in the forefront of the province.Through numerical simulation analysis,it is concluded that the continuous concentrated heavy rainfall in the region is the direct inducing factor for the formation of landslides,and landslide disasters are extremely prone to occur under heavy rain conditions.