Analysis And Treatment Of Deng Jia Bang Landslide Stability In Yilong County

Deng jia bang landslide located in the north-west of Yi Long county.The landslide running 200 meter long,and average 260 meter wide,lateral distribution area of about52000 m2,the thickness of generally 5 to 9 meter,average thickness of about 7 meter,landslide volume of about 364000 m~3,main sliding direction 5°,the landslide is a medium-sized and soil-type of shallow landslide.Landslide threat springs village 1 club14 more than a total of 58 people's life and property safety,and the slope top and village(cement)road is about 300 meter long and about 60 mu of cultivated land,and 1 pond,threat to the property of about 4.8 million yuan,harm degree is bigger.Therefore,in order to ensure the safety of people's lives and property of the landslide,for exploration and evaluation and carried out on the basis of landslide in the exploration and evaluation of project governance has its necessity.On the basis of field investigation and engineering exploration,this thesis clarifies the engineering geology of Deng jia bang landslide.The basic characteristics of the landslide are described from three aspects:morphology,material composition and deformation and failure characteristics of landslide;Based on the perambulation,it analysed the basic character of slide,made the macroscopical judgement of the existence condition and cause of formation,judgment and quantitative calculation of landslide currently possible changes in the stability and development trend analysis and evaluation.The use of the Principle of geological analysis and the limit equilibrium method,the landslide stability and local stability of the overall system analysis,calculation and evaluation,and through the FLAC~3DD software of three-dimensional finite element numerical simulation of the characteristics of the stress field and deformation characteristics of the landslide are analyzed,and the simulation results with the results of the comparative analysis and conclusion in order to check the effect of each other.Through the analysis and Research on the destruction form and scale of the landslide,predict the development trend of Yilong County landslide and hazard Deng jia bang landslide,and the landslide control project put forward optimization design.