滑坡形成的机理分析及治理实例

Analysis of landslide formation mechanism and treatment example

以陕西横山采油厂白狼城集输站滑坡治理工程为例,分析论证黄土滑坡的形成机理,提出相应的防治措施。对所在地的地形地貌、地层岩性、地质构造与地震、水文地质条件等地质资料进行综合分析及评价。通过滑体的空间形态、滑坡变形特征及其危害、滑坡变形破坏及形成机理分析对滑坡的稳定性进行分析评价,并根据治理区的地形地貌、地质、工程地质、水文地质条件,采取施工抗滑桩,辅以挡土墙、深高压旋喷桩、渗水井及坡面平整压实,排水工程等整治措施对滑坡进行治理,取得良好效果,该滑坡在陕北黄土地区具有一定的典型性。

Taking the landslide treatment project of Bailangcheng gathering station in Hengshan Oil Production Plant of Shaanxi Province as an example,the formation mechanism of loess landslide is analyzed,and the corresponding prevention measures are put forward.Based on the comprehensive analysis of geological data such as landform,formation lithology,geological structure,earthquake and hydrogeological conditions,the spatial form of landslide,landslide deformation characteristics and hazards,landslide deformation and failure and formation mechanism are evaluated.According to the landform,geology,engineering geology and hydrogeological conditions of the treatment area,the construction of anti slide piles,supplemented by retaining walls,deep high-pressure jet grouting piles,seepage wells,slope leveling and compaction,drainage works and other landslide treatment measures are taken,and good results are achieved.The landslide is typical in the loess area of Northern Shaanxi.