峨眉九里滑坡形成机理及滑坡稳定性研究

九里滑坡位于四川峨眉山市九里镇兴阳村四组，该滑坡若产生速滑将威胁附近居民，甚至给九沙河河道畅通造成影响。通过现场踏勘，在查明该滑坡地质环境特征、斜坡地质结构和变形破坏模式基础上，建立其地质结构模型，利用基于流固耦合理论分析的有限元分析软件FLAC3D，研究了该滑坡在河流下切作用下的形成机理，并利用参数敏感性分析和极限平衡分析方法就稳定现状和发展趋势进行了分析预测，并判断出九里滑坡处于危险期。必须采取相应措施，确保人民财产的安全。

Study on Formation Mechanism of Emai Jiuli Landslide and Its Stability

Jiuli Landslide locates in the Fourth Team of Xingyang Village, Jiuli Town, Emei City, Sichuan. It, if sliding, will endanger the residents nearby, even make influence on the stream course of Jiusha River. Depending on site investigation of the geological conditions of the Landslide, the geological structure of the slope, and deformation failure mode, with FEM analysis software FLAC3D and the principle of fluid-solid coupling analysis, the formation mechanism of this landslide under the action of river incision was studied, and by parameters sensitivity analysis and limit equilibrium method, the status quo of stability and the development trend were evaluated and predicted, based on which Jiuli Landslide is judged to be dangerous, and should be treated with corresponded measures for the purpose of securing property safety of the people.