Yangla Mining Slope Displacement Back Analysis And Engineering Application

Slope is widely distributed on the surface in a form of landform,which refers to the earth’s crust on the surface of the table of all international airport with lateral geological body. In the pro-cess of its formation and operation, the slope will be change the stress distribution in the body when the composition of the slope rock mass strength can not adapt to the stress distribution. Landslides based on Yangla copper mine geological disasters as the background, comprehensive consideration of various factors, together with the present situation of ore block displacement monitoring data in-formation analysis in the use of the existing slope rock strength parameters, the influence of to evaluate the slope stability and the sequence of the production guide provides a feasible way. The thesis works mainly as follows:① In back analysis theory on the basis of exploring the displacement back analysis method in the application of relevant knowledge in slope, it is concluded that the establishment of the numeri-cal model, the design variables and the number, the determination of the objective function, and so on aspect should pay attention to the problems and the need to adhere to the basic principles of.② Starting from the investigation on the current situation in lanes in sheep pull copper ore block, the analysis of deformation damage, goaf roadway and the causes of the formation of dan-gerous rock mass of the earth’s surface, etc③ General finite element software is used to analyse the farmers in the slope rock mass of corresponding parameters inversion calculation, it is concluded that the slope rock mass parameters of the cohesive force of c value changes between 10.04%～11.7%, the change of elastic modulus is 0.3%～0.75%, the change of the internal friction Angle phi in 5.92%～10.1%;Cohesive force and internal friction Angle phi are the main influence factors of slope landslide, landslide, but the influ-ence of modulus of elasticity also nots allow to ignore.④ Through numerical forward analysis, simulation of displacement value is bigger than the displacement values obtained from monitoring of actual. Was the result of numerical simulation is to achieve the value of the damage state and the actual monitoring is a process of dynamic change, much affected by the environment condition, monitoring value is a process of gradual change, re-flects the slope from unstable to stable a dynamic process.