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为实现7199工作面在高水压突水条件下安全回采,通过对徐庄煤矿水文地质条件分析、水质化验及工程验证确定突水水源,采用瞬变电磁探测法和巷道地震共偏移法探测技术探测7199工作面顶板含水层区域,通过工作面两巷及切眼数据综合计算,得到工作面面内及周边和顶板方向上下的相对低阻异常区域的分布情况.结果表明:较大低阻异常区域主要集中在工作面近溜子道一侧;7199工作面突水水源为顶板砂岩水和分界砂岩水,存在底含和侏罗白垩水间接补给;主要的导水通道为采动导水裂隙带.
In order to realize the safe mining of 7199 working face under the conditions of high water pressure water inrush, the water inrush was determined by hydrogeological analysis, water quality test and engineering verification of Xuzhuang Coal Mine, and the method of transient electromagnetic detection and roadway seismic co-migration Technical survey 7199 working face roof aquifer area, through the face two lanes and cut-out data comprehensive calculation, get the work surface and the surrounding area and the top and bottom of the direction of the relatively low resistivity anomaly area distribution.The results show that: The anomalous areas are mainly concentrated on the side of the working face near the slip road. The water inrush from 7199 working face is roof sandstone water and boundary sandstone water. There is indirect recharge between the bottom sediments and the Jurassic chalk water. The main aqueduct is the aqueduct band.