淄博市沂源县某滑坡形成机制及其稳定性分析

Formation mechanism and stability analysis of a landslide in Yiyuan county Zibo city

某滑坡体自1998年出现滑动以来,一直存在安全隐患,威胁当地居民生命财产安全。根据实地调查及工程勘查,掌握了滑坡体的基本特征,文章对滑坡的变形特征、成因机制及稳定性进行了计算与分析。研究表明:该滑坡为一小型岩质牵引式滑坡,滑坡整体在天然工矿下处于欠稳定状态,在暴雨或暴雨+地震工况下处于欠稳定状态。在雨季降水集中发生或暴雨加地震的情况下,该滑坡体失稳的可能性较大,威胁公路及过往人员及车辆等。

There has been a potential safety hazard in a landslide since its sliding in 1998,which threatens the life and property safety of local residents.According to the field investigation and engineering exploration,the basic characteristics of the landslide are mastered.In this paper,the deformation characteristics,genetic mechanism and stability of the landslide are calculated and analyzed.The research shows that the landslide is a small rock traction landslide.The landslide is in an unstable state under natural industrial and mining conditions and in an unstable state under rainstorm or rainstorm+earthquake conditions.In case of concentrated precipitation in rainy season or rainstorm plus earthquake,the landslide is likely to be unstable,threatening roads,passing personnel and vehicles.