Mechanism Research Of Xiaodejiang Landslide In Nanning—Kunming Railway

Xiaodejiang landslide lies in xiaodejiang Village of Luoping County in Yunnan province. Nanning-Kunming railway crosses the toe of it. It is an enormous accumulation horizon landslide in traction model. Based on the xiaodejiang as research object in this paper,we use Qualitative analysis of geological data,physical simulation experiment and numerical analysis to analyze the sliding mechanism of xiaodejiang landslide.The main contents and results are as follows:(1) In this paper,Qualitative analyzing the sliding mechanism of xiaodejiang landslide from geological structure,topography and geomorphology.formation lithology,hydrogeology condition and human factors.(2) Based on the stability coefficient formula of partial derivative, we analyze the density, cohesion, friction angle and groundwater level how to effect to slope stability, this is the Sensitivity analysis of the factors that affect the stability of landside.(3) According to the similarity principle of physical simulation experiment,we use floor-friction simulation to simulate the process of deformation and failure of slope. According to the model element displacement situation, summarizing and analyzing the sliding mechanism of xiaodejiang landslide.(4) Using the method of the physical model experiment which used the gypsum electrode as the model units, according to the alternate displacement of model units and contrast experiment, summarizing and analyzing the sliding mechanism of xiaodejiang landslide.(5) Application of Ansys software in stress and strain calculation of xiaodejiang landslide. Comparative analysis of the stress and strain of slope in different slope angle condition, rainfall condition and seismic loading condition,Summed up the sliding mechanism of xiaodejiang landslide.