Research On The Stability Of Non-working Slope In First Mining In Weijiamao Open Pit Mine

The stability of the slope is one of the hot issues of geotechnical engineering research. Thestability of open-pit mine slope is the premise and basis to realize safe and efficient production.With the increase of output scale and quantity of chinese open-pit mine, the problem of slopestability is more prominent. How to evaluate science the stability of slope According to a certainactual conditions of open pit mine，putting forward reasonable landslide prevention and controlmeasures is mining engineering field engineering and technical personnel to solve the problem.The Papers is based on the open pit mine in weijiaMao.Analysis of slope engineeringgeological conditions and hydrological geological conditions. On this basis, combined with thetypical rock slope deformation and failure mode and test a weak layer and glutenite physicalproperties, ensure the first mining non-working slope the potential failure mode in open pitmining in weijiaMao; To calculate the stability fos that it is under different ways of sliding slopeand after cutting slope stability reducing load from Using the rigid body limit equilibriummethod. Using FLAC3Dto numerical simulation for the stability of the slope, clarify theevolution laws of stress field of slope rock mass, reveals the slope landslide mechanism ofnon-working slope，sure the landslide mode for the "arc sliding surface" sliding; Based on thesimulation resultsof the slope stability calculation，put forward the corresponding cutting slopeand reducing load stable slope of prevention and control measures. It is a guidance for slopestability of open pit mining in weijiaMao，it is also a reference for mine slope stability of similaropen-pit.