彬长矿区综采工作面导水断裂带发育规律

Overburden Failure Development Law in Fully Mechanized Mining in Binchang Mining Area

针对彬长矿区侏罗系煤层开采受顶板洛河组含水层水害影响严重,煤层顶板导水断裂带发育规律不明确的问题,以亭南煤矿综采204工作面为研究对象,采用冲洗液消耗量观测和简易水文观测方法,辅助开展钻孔彩色电视窥视综合探查手段,研究综采大采高工作面煤层开采顶板导水断裂带发育规律。结合国内针对综采工作面煤层顶板导水断裂带发育高度经验公式分析,修正得出适用于彬长矿区综采工作面的导水断裂带发育高度确定方法。

Aiming at the problem that the Jurassic coal seam mining in Binchang Mining Area is seriously affected by the water damage of Luohe Formation aquifer,and the overburden failure development law of the fully mechanized mining is not clear.The204 working face in Tingnan Coal Mine is taken as the research object,using the observation of consumption of flushing liquid,simple hydrological observation,and comprehensive exploration of drilling color TV peeping,the overburden failure development law of coal seam mining in fully mechanized mining face is studied.Combined with the domestic empirical formula for the development of the water-conducting fracture zone of the coal seam roof in the fully mechanized mining face,the method for determining the development height of the overburden failure zone suitable for the fully mechanized mining face in Binchang Mining Area is revised.