基于仿真计算的永城矿区采空区地表沉陷防治研究

煤矿采空区地面沉陷是永城矿区典型、突出的矿山地质环境问题。利用永城矿区特有的地质煤层条件和岩移观测参数,充分考虑采区间、断层、巷道等煤岩柱影响,将各块段的岩移计算参数和数据输入计算机,对煤矿开采造成的地面沉陷区范围进行仿真计算和分析,掌握了沉陷区地表移动与变形值、采煤塌陷耕地面积等基本数据,为制定采煤沉陷区的预防和治理方案提供了可靠依据。综合治理方案实施后,采煤沉陷区将得到有效治理。

Research on Surface Subsidence Control over Gob in Yongcheng Coal Mining Area Based on Simulation Calculation

The surface subsidence above coalmine gob area is a typical and serious geological environment problem in Yongcheng mining area. Based on the geological conditions of coal seams and the observed parameters of surface strata movement, simulation calculation and analysis on the surface subsidence range caused by coal mining were conducted by fully considering the influence of coal and rock pillars, faults, roadways and so on in the mining area and, inputting the parameters and data of rock mass movement into the computer, the basic data such as surface movement and deformation values in subsidence area and the collapsed cultivated area caused by coal mining were thus obtained, this provided reliable basis for working out the prevention and control schemes of coalmining subsidence areas. The coalmining subsidence areas have been effectively controlled after the implementation of the comprehensive control schemes.