东峰矿8101工作面并行电法探测顶板富水区技术研究  

Study on the technology of parallel electrical method to explore roof water abundance area in No.8101 Face of Dongfeng Mine

作　　者：郭斌 Guo Bin(Xinzhou Emergency Management Bureau,Xinzhou 034000,China)

机构地区：[1]忻州市应急管理局,山西忻州034000

出　　处：《煤炭与化工》2024年第1期74-77,共4页Coal and Chemical Industry

摘　　要：煤矿开采过程中,煤层上覆采空区积水是造成透水事故的重要因素之一,严重影响下部工作面的安全生产。为了实现东峰矿8101工作面的安全生产,通过分析工作面的地质和水文地质条件,采用并行电法探查了8号煤层顶板不同高度的富水性,查明了上覆7号煤层采空区低洼地带呈“Y”字型分布。在上顺槽通尺350、370和390 m处向下顺槽方向顶板施工3个探查钻孔,对采空区积水进行疏放。成孔时的钻孔总涌水量为9.2 m^(3)/h,经过11 d的疏放,最终涌水量之和减小到0.8 m^(3)/h,实现了8101工作面的安全开采,为其它工作面探查顶板富水异常区提供了经验借鉴。In the process of coal mining,the accumulated water in the overlying goaf of coal seam was one of the important factors causing water outburst accidents,which seriously affected the safety production of the lower working face.In order to realize the safe production of No.8101 Face in Dongfeng Mine,through the analysis of the geological and hydrogeological conditions of the working face,the parallel electrical method was used to explore the water abundance of the roof of No.8 coal seam at different heights,and the low-lying area of the overlying No.7 coal seam goaf was found to be'y'-shaped distribution.Three exploratory boreholes were constructed in the roof of the lower roadway at 350,370 and 390 m of the upper side roadway to drain the water in the goaf.The total water inflow of the borehole was 9.2 m3/h when the hole was formed.After 11 days of drainage,the sum of the final water inflow was reduced to 0.8 m3/h,and the safe mining of the No.8101 Face was realized.It provided experience for other working faces to explore the water abundance abnormal area of the roof.

关 键 词：水害防治 采空区积水 并行电法 

分 类 号：TD74[矿业工程—矿井通风与安全]