某高速公路填方路基滑坡成因及稳定性分析

Analysis of Causes and Stability of Landslide of an Expressway Filled Subgrade

以某高速公路K128+240—K128+633段高填路基滑坡为例,结合工程区地形地貌条件、水文地质条件、人类工程活动等,分析了该滑坡的变形破坏特征和成因机理,认为该滑坡的形成是由多种因素共同作用的结果,地层岩性是滑坡形成的基础,大气降雨及人类工程活动是滑坡形成的诱因。通过稳定性分析与计算,采用锚索+抗滑桩、截排水等措施对滑坡进行了综合处理,目前该滑坡已处于稳定状态,处治措施达到了良好的效果。

Based on the landslide of the high-filled subgrade in the K128+240 to K128+633 section of an expressway,combined with the landform condition,hydrogeological condition,and engineering activities in the engineering area,this paper analyzed the deformation failure characteristics and cause mechanism of the landslide.it was considered that the landslide was formed by multiple factors.Specifically,lithology was the foundation forming the landslide,and rainfall and engineering activities were the causes of the landslide.Through the stability analysis and calculation,the landslide was comprehensively treated by anchor cable+anti-slide pile,cut-off drainage,and other measures.Currently,the landslide is in a stable state,and the treatment measures have reached a good effect.