摘要
Abstract
The landslide is located in Longquan District,Chengdu,Sichuan province.For the construction of a factory,the mountain was cut to a steep slope.Under the heavy rain,the loosened rock mass slide over the overlying mudstone surface has formed a high landslide,which will threat the factory and the safety of workers at the front bottom.Through on-site geological survey,the condition of landslide boundary and the crack distribution on the slope are controlled by the early tectonic structure surface.By geological mechanism analysis,the landslide side edge,bottom boundary are controlled respectively by two groups of shear structural plane,a tensile structural plane and the surface of this two different layers.The deformation on the surface of this landslide is obviously.Through the on-site qualitative judgment and calculation,the results show that the landslide is in unstable state under natural condition,and under heavy rain or earthquake conditions,its stability will be much worse.Therefore,the authors put forward a management proposal by clearing the surface loosen rock mass and construct surface drainage.Combining the surface deformation indication and geomechanical analysis method,the paper has great reference for identifying the boundary conditions of similar rock landslides,formation mechanism analysis and stability evaluation.关键词
滑坡/地质力学/地貌分析/成因机制/稳定性评价Key words
landslide/geological mechanics/morphological analysis/formation mechanism/stability analysis分类
天文与地球科学
