郭家河煤矿综放工作面覆岩导水裂隙带发育规律研究

Study on the development law of water flowing fratured zone in overburden strata of fully mechanized mining face

以郭家河煤矿1303综放工作面为背景,结合导水裂隙带发育的煤层赋存情况、围岩岩性和地质条件、工作面参数、采煤工艺、顶板管理方法和时间过程等,预测了不同采厚条件下冒落带、断裂带的发育高度,通过对其上覆岩层破坏规律分析,为煤矿瓦斯抽放和防治水工作提供了理论依据。

Taking No.1303 fully mechanized caving face in Guojiahe coal mine as the background,by analyzing the occurrence of coal seam,geological conditions,working face parameters,mining technology and roof management method,etc.,the development height of the caving zone and fracture zone under the conditions of different mining thickness was predicted,and the failure law of the overlying strata was analyzed,which provides a theoretical basis for the gas drainage and water prevention and control of coal mine.