羊场湾煤矿充水因素分析及矿井涌水量计算

Analysis of Water Filling Factor and Calculation of Water Inflow in Yangchangwan Coal Mine

文章在分析羊场湾煤矿一号井水文地质条件的基础上,结合该矿煤炭勘查资料及井下采掘揭露资料,对矿井充水因素进行了分析研究,明确了侏罗系直罗组底部砂岩(七里镇砂岩)至二煤层顶板砂岩含水层是二煤层开采条件下主要的充水来源和直接充水含水层,断裂构造带及采动裂隙是主要的充水通道。采用大井法、地下水动力学法及比拟法分别对羊场湾煤矿一号井+400水平以浅二煤层矿井涌水量进行计算,对计算结果进行分析论证并合理取值。对于羊场湾煤矿一号井矿井排水系统设计及开展煤矿防治水工作有着较高的指导意义及参考价值。

Based on the analysis of hydrological geological conditions of Yangchangwan Coal Mine No.1 well and exploration data, the paper analyses mine water filling factors, points out the basal sandstone of Jurassic Zhiluo Formation to the roof sandstone aquifer of the second coal seam is the main water filling sources and direct water filling aquifer, the faulted structural zone and mining fracture is the main water filling channel. It calculates the coal mine inflow in No.1 well ＋ 400 level and the second coal seam of Yangchangwan Coal Mine, and the calculation results are analyzed and the reasonable value is obtained. It has a higher guiding significance to the design of mine drainage system and mine water prevention of Yangchangwan Coal Mine.