The Experimental Research of Numerical Simulation for the Depth Mining's Effect on the Law of Movement and Failure of Overburden Rock Seam

Taking 2204 working surface of Xinzhi Mine in Huozhou City, Shanxi Province, as an experimental base,and using the RFPA2D made by the Rock Failure Research Center in Northeastern University,this paper simulates the mining subsidence's process on the conditions of different mining depth (such as 201 m, 150 m, 100 m and 63 m) and constant thickness of loose seam, and analyzes in detail on the different mining depth's effects on the three zones of goaf and the value of movement and deformation of the ground's surface, and probes into the law of movement and deformation of mining overburden rock.