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为了解决夏庄煤矿薛沙河下采煤问题,基于该矿地质采矿条件,采用离散元软件UDEC建立了该矿的数值模型,研究了采场走向上覆岩层受采矿扰动形成的裂缝发育及分布规律,同时基于经验公式和关键层位置理论推导出导水裂缝带发育高度。可作为类似地质采矿条件矿井水体下煤层开采的参考依据。
In order to solve the problem of coal mining under Xinsha River in Xiazhuang Coal Mine, the numerical model of the mine is established by the discrete element software UDEC based on the geology and mining conditions of the mine, and the development and distribution of fractures formed by mining disturbance in the overburden strata are studied Based on the empirical formula and the theory of the critical layer position, the developmental height of the aqueduct is deduced. It can be used as a reference for the mining of coal seam under mine water conditions similar to geological conditions.