采动对岩层移动破坏规律的数值模拟试验研究

运用东北大学岩石破裂中心研制的RFPA2D软件,以山西省霍州市辛置煤矿2204工作面为试验基地,对采深不同(201m,150m,100m,63m)和上覆松散层厚度一定条件下的开采沉陷过程进行了数值模拟试验,系统地分析了不同采深对采空区“三带”下沉量及地表移动变形量的影响,探讨了不同采深下采动上覆岩层移动与变形规律。

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.