浅议百良煤矿复杂地质条件下的充水因素

百良煤矿位于澄合矿区东部,主采5号煤层,位于奥灰水静水位以下,属承压开采区。奥灰岩溶水系统属隐伏型地下水系,属于煤炭开采过程中底板突水威胁的充水水源。第四系松散孔隙含水层、三叠统至下二叠统裂隙水含水层、上石炭统太原组及中下奥陶统峰峰组岩溶水为采掘活动中重要的顶板充水因素,加之地质构造较为复杂多变,水文地质条件复杂。随着采掘区域的扩大,原有的水文地质资料与实际有一定出入,已不能满足实际。本文结合实际生产过程中的水文地质条件变化规律和充水因素进行详细分析,并与原有的地质资料进行对比分析,提出了新观点和研究思路,对矿井今后的水害预测预报、水害防治工作具有重要的参考价值,促使矿井防治水工作更具有实效性。

Discussion on water filling factors under complex geological conditions in Bailiang coal mine

Bailiang coal mine is located in the east of Chenghe mining area,and the No.5 coal seam is located below the Ordovician limestone static water level,which belongs to pressure mining.Ordovician limestone karst water system is a hidden underground water system,which is the water filling source of floor water inrush in the process of coal mining.Quaternary loose pore aquifer,Triassic to Permian fracture aquifer,Upper Carboniferous Taiyuan Formation and Ordovician Fengfeng Formation karst water are important roof water filling factors in mining activities.In addition,due to many geological structures,the mine hydrogeological conditions are complex.With the expansion of the mining area,the original hydrogeological data and the actual have some differences,which can not meet the production needs.Combined with the original geological exploration data,the change rules of hydrogeological conditions in the actual production process are analyzed,which has important reference value for the prediction and prevention of water disasters in the future,and makes the mine water prevention work more effective.