Study On The Stability Of Consequent Layered Rock Mass Of Yuanbaoshan Open Pit Mine East Slope

Yuanbaoshan open-pit mine in mining process, the east slope appear multiple times for the landslide, a serious threat to the normal stripping operation as well as the upper boundary of the construction content security. The east slope has temporarily by world, forming the existing slope to the final slope a lot pressure coal phenomenon, cause huge economic losses. Through the study of yuanbaoshan open-pit mine east slope stability, provides the reasonable measures to control the stability of the slope of the east slope pressure coal mining, mine normal production and surrounding facilities construction content security is of great significance.The paper according to the actual conditions of yuanbaoshan open-pit mine, the comprehensive application of theoretical analysis and engineering geology survey, fill the limit equilibrium method and numerical simulation, means and method of yuanbaoshan open-pit mine east help typical along the dip bedded slope stability for a more in-depth study. According to the engineering geological prospecting for, a systematic analysis of the east slope of the section in formation lithology, geological structure, rock mass structure, pour the weak layer, groundwater and stability factors, preliminary judgment out of its potential landslide model; Application of the rigid body limit equilibrium method to evaluate the different position and form east slope stability; Application software RFPA-Slope, simulates the east Slope instability in the process of displacement distribution and deformation failure characteristics, this paper reveals the mechanism of the landslide, Puts forward the drainage, inner row presser foot, and other comprehensive protective measures.