Study On The Stability And Control Project Of The Eastern Slope Of JDC Mining Field

JDC mining field is located at the southern edge of the East Qinling Mountains, attachto Jin Dui town of Hua Xian Country of Shaanxi Province which is located in the east partof Guanzhong. With the complicated geomorphic conditions, the development of surfacewater, groundwater, fold, fault and joint fissure, and the long-term exploitation ofmolybdenum mineral, the problem of high slope in study area is outstanding. Therefore, theproblem always facing the geological workers and safety manager is to evaluate high slopestability and seek effective treatment measures. According to the field investigation data,this paper analyzed the deformation and failure mechanism of eastern slope, and studied itsstability and engineering control measures. The results are as follows:First of all, this paper obtained the different deformation and failure mechanismbetween south section and north section of eastern slope based on the analyzing oftopography and geomorphology, formation lithology, meteorology, hydrology andgeological structure of mining field.Secondly, draw Stereographic Projection base on the statistical data of joint fissure ofthe southern section of east slope, and then evaluated east slope’s stability. Emphaticallyanalyzed and evaluated the northern section of east slope which is located in Yan Menaofault zone, and used FLAC2D finite element simulation combined with field investigationresult searching potential danger zone of this section slope, calculated its downslide by themean of limiting equilibrium method, and then evaluated its stability.At last, according to the analysis result, comprehensive control measures forcontrolling the southern section slope which seriously influenced the whole stability of eastslope were proposed. emphatically provided an engineering control scheme of slope cuttingand cut-drainage engineering and Pre-stressed Anchor Cable with Frame Beam, anddesigned the related parameters of Pre-stressed Anchor Cable with Frame Beam, and usedelastic foundation beam method which based on the Winkle assumption checking theinternal force of frame beam.