Grouting Filling Surface Movement Deformation Law Under The Mechanism Of Action Research

Ground subsidence is mainly a kind under the action of natural and human factors, when valuable mineral are produced,the original stress state of equilibrium of mining area of the surrounding rock mass will be damaged, stress redistribution, reaching a new equilibrium,and this process will make that the mining area of the surrounding rock and the surface produce a continuous movement, deformation and the destruction of the discontinuous (cracking caving, etc.), the phenomenon is called "mining subsidence. Grouting filling mining is one of the effective technical means to control the surface subsidence, the main work of this paper is as follows:(1) Huaibei luling mine shop working face was taken as research object, for the grouting filling mined-out area,movement and deformation monitoring network was established under the filling based mining conditions,filling observation data can be obtained under the conditions of surface subsidence;(2) By analyzing the observed data for yuan shop working face Under the condition of filling mobile deformation law,the sinking contour maps were drawn about this working face;(3) GM (1,1) and D-InSAR model was established to predict the surface monitoring points,analysis of surface subsidence in the mining under the condition of filling mining law and show the advantage of filling mining.