红岭煤矿水文地质特征及充水因素分析

通过对矿区含、隔水层及断层带水文地质特征的分析和井下水文地质现象的观测,认为目前矿井开采煤层较浅,以二1煤顶板直接含水层充水为主,水量不大;但随采掘的延深,煤层下伏的太原组灰岩和奥灰含水层,会在断层的影响下,与其它含水层发生水力联系,对矿井开采形成威胁。根据对矿井充水因素的分析结果,指出目前矿井的充水强度不大,充水通道主要为断层带,在开拓-800m水平时,应注意构造破坏或隔水层薄弱地段,此地段有可能出现奥灰水突入矿井的危险。为防止矿井突水,提出了建立健全地下水观测系统,加强井下钻探和物探工作,重视邻近矿井老窿水监测等矿井水害防治工作建议。

Hydrogeological Characteristics and Water Filling Factors in Hongling Coalmine

Through mine area aquifer, aquifuge and fauh zone hydrogeological characteristic analysis, as well as underground hydrogeological phenomena observation, considered that the coal mining at present is rather shallow, water filling is mainly from the Ill coal seam roof direct aquifer and water inflow is not large. Along with winning and opening depth deepening, coal seam underlying Taiyuan Formation limestone and Ordovician limestone aquifers will bring on hydraulic connection with other aquifers under the impact from faults and threaten coal mining. According to mine water filling factor analysis, pointed out that water filling intensity is not high at present, water filling channel is mainly fault zones. When -800m level is opening-out, structural destruction or aquifuge weak sectors should be paid attention to, as from such sectors may have hazard of Ordovician limestone water bursting. To prevent ＂mine water bursting, controlling suggestions of groundwater observation system establishing and perfecting, underground drilling and geophysical prospecting, pay attention to neighboring mine gob water monitoring etc. put forward.