Slope Stability Study Of Heiliudong Mining In Jiulong County

Geological environment of the western region is very fragile.There are regional complex geological structure,intense neotectonic movement,frequent earthquake,developmental fracture,Broken rock mass,Rolling terrain,abundant rainfall.Special landform,geologic environment and climatic conditions make the region has always been a high incidence area and Prone areas of landslide,collapse and other geological disasters.In this paper,the author studies on the Heiniudong mining area is located in Sichuan province Ganzi Tibetan Autonomous Prefecture Jiulong County.The slope body material is quaternary loose slope sediments.It belongs to the soil slope.So the Sweden slice method of limit equilibrium method and the FLAC software simulation are used to study Heiniudong mining slope stability condition and development trend.This article through the wild geological investigation determine morphological characteristics of slope,composition and the main factors influencing the slope stability:rain.Through the analysis of the main influence factors,determine the Heiniudong mining slope instability mechanism,provides a theoretical basis for the slope governance.Swedish article points method and FLAC software simulation results show that:Under the condition of natural condition and heavy rain conditions Heiniudong mining slope is in steady state.In the case of heavy rain,the Stability coefficients of the slope is less than 1.3(When the security level is first level,slope stability safety coefficient(K)= 1.30).So heavy rain larger influence on the stability of the slope.To avoid slope instability,cause huge economic losses,recommended excavation slope control scheme using anti-sliding retaining wall + anchor + surface drainage project,and adjust the elevation of yard plateau when yard plateau planning,site drainage system when site planning and set protective screening or Block retaining wall in the site trailing edge.