摘要
以巴愣矿井为例,分析了矿井水文地质特征,矿区内共有5个含水层和3个隔水层,水文地质边界有两类:一是断层(北、东、南),二是西边界煤层露头;白垩系下统志丹群含水层,侏罗系中统直罗组含水层,侏罗系中统延安组含水层为直接充水水源;矿井充水通道,主要为煤层采空导致顶板岩层冒落形成的导水裂隙带。采用大井法计算了矿井涌水量,延安组砂岩含水层涌水量438m3/h,志丹群含水层涌水量142 m3/h,合计580 m3/h。其中,延安组含水层涌水量438 m3/h,可作为矿井正常涌水量,两个含水层的合计涌水量580 m3/h,可作为矿井最大涌水量。
Takes Baleng coal mine as an example, through the analysis of the hydrogeological characteristics of the mine, a total of 5 aquifers and 3 aquifuge in the mining area, hydrogeologic boundary has two kinds, the first is the fault （ north, east, south ）, the second is west boundary coal seam outcrop. Lower cretaceous Zhidan group aquifer, mid jurassic Zhiluo formation aquifer and mid jurassic Yanan formation aquifers are direct filling water source Mine water filling channel mainly is the water flowing fractured zone of forming which coal goal caused roof rock stratum falling. The water yield of the mine is calculated by the big well method, the water inflow of Yanan group sand- stone aquifer is 438 m3/h, the water inflow of Zhidan group aquifer is 142 m3/h, total 580 m3/h. Among them, the water inflow 438 m3/h of Yanan group aquifer can be used as a normal water inflow in the mine, the total water inflow 580 m3/h of two aquifers can be used as maximum gushing water in the mine.
出处
《山西焦煤科技》
2013年第7期17-20,31,共5页
Shanxi Coking Coal Science & Technology
