平煤西部矿区灰岩水赋存特征及涌水量预测

摘要

对平煤西部矿区含水层特征、富水性强弱、隔水层隔水性能以及灰岩水的补、径、排条件进行了分析研究,同时采用稳定流法对研究区采掘揭露灰岩时可能产生的涌水量进行了预测,最后得出矿区内对矿井充水影响较大的含水层是碳酸盐类岩溶裂隙含水层（组）,主要包括寒武系灰岩含水层、石炭系太原组灰岩含水层及第三系灰岩含水层,隔水层主要是页岩和泥岩,通过分析灰岩承压水的赋存特征得出其赋存的规律,即灰岩地下水的赋水性同灰岩的埋藏深度呈负相关的关系.通过以上分析为矿井防治灰岩水提供一定的依据.%The aquifer characteristics,the strength of water abundance,water-resistance ability of aquifuge,and recharge,runoff and discharge conditions of the limestone water in areas of western Pingdingshan mining,meanwhile it estimates the water inflow when exposing the limestone in the mine by using the stable flow method.At last it comes to a conclusion that the carbonate karst fractured aquifer plays an important role to the mine filling water in the area,mainly including Cambrian limestone aquifer,Carboniferous Taiyuan limestone aquifer and Tertiary limestone aquifer,and the main Impermeable layer is the shale and mudstone.It obtains obtained the occurrence law of the limestone confined water by analyzing its occurrence characteristics,that is there is a negative correlation between the limestone groundwater water-bearing and the buried depth of the limestone.Through the above analysis,It provides basis for the prevention and treatment of limestone water in the mine.