Research On The Stability And Control Measures For The Landslide Of Neijiang To Liupanshui Railway At Qinggang Village

Landslide is a common geological disaster, which can bring huge casualties and property losses. Our country with a vast territory and complex geological environment, suffers from geological disasters seriously. And the landslides in these geological disasters are in a large proportion. Therefore, researching on the characteristics of landslide, stability of landslide, principle of landslide occurrence, and corresponding measures is of great significance.This paper is based on the landslide of Neijiang-Liupanshui railway at Qinggang village, Daguan, with the field nvestigations of natural geography, landslide lithology, geological structure and hydrogeological characteristics of ground motion parameters. Combined with the indoor tests, the physical and mechanical parameters of rock and soil of the landslide are obtained, and the characteristics of the landslide are also summarized. It analyzes the stability of landslide under different conditions by the method of limit equilibrium, and calculates every surface’s export thrust of the main section. According to the relevant standard and construction experience, it puts forward the slope treatment schemes by anti slide piles and anchor frame beam. The use of finite element software ANSYS on the landslide in two conditions before and after reinforcement is simulated, with the maximum stress, maximum displacement of the position of the landslide, and the development of plastic zone, and verifies the rationality of the control measures. Through a large number of field data and geological condition of landslide area’s survey, combined with some characteristics of the landslide, it discusses the principle of landslide induced by earthquake and rainfall.Due to topography, geological conditions, there were a lot of geological disasters in the Southwest, so this paper has a certain reference value to other landslides. It studying on the characteristics and principle of landslide also contributes to other scholars to conduct more in-depth study on landslides.