8503工作面水患物探探测及钻孔探放水实践  

Geophysical Exploration and Drilling Practice for Water Hazard in Working Face 8503

作　　者：牛文琼 Niu Wenqiong(Jinhuagong Colliery,Jincheng Holdings Coal Industry Group,Datong,Shanxi 037016)

机构地区：[1]晋能控股煤业集团晋华宫矿,山西大同037016

出　　处：《江西煤炭科技》2025年第1期125-129,共5页Jiangxi Coal Science & Technology

摘　　要：晋华宫矿7^(-1#)层305盘区8503工作面多处煤壁及支架出现渗水、切巷低洼区有大量积水,裂隙和断裂处涌水量大。采用瞬变电磁法对巷道进行超前探水,测得工作面顶异常区主要有两处,均为上覆3^(#)层和2^(-3#)层采空区局部积水所致;用直流电法测得2处异常区均为薄煤区影响范围;用坑透法测得2处异常区为破碎带和正断层影响范围。向上覆采空区低洼位置设计及补打放水孔12个,累计排放积水9.5万m^(3),并提出了封孔和排水措施,解决了工作面的水害问题。Aiming at the problems of water seepage in multiple coal walls and supports,large amounts of water accumulation in low-lying areas of cut tunnels,and large water inflow at cracks and fractures in No.7-1 layer,the 305 panel of the 8503 working face,Jinhuagong Colliery,the author uses transient electromagnetic method to conduct advanced water exploration on the roadway and measures two main abnormal areas at the top of the working face,both caused by local water accumulation in the overlying No.3 and No.2-goaf areas,both of which are within the influence range of thin coal areas measured by direct current method,and both of which are the impact range of fractured zones and normal faults measured by the tunnel perspective method.Designing and drlling 12 drainage holes in low-lying areas of the overlying goaf,with a cumulative discharge of 95000 m^(3)of accumulated water,he also proposes sealing and drainage measures,which solves the problem of water disaster on the working face.

关 键 词：工作面探放水 超前物探 直流电法 瞬变电磁 坑透法 

分 类 号：TD166[矿业工程—矿山地质测量] TD745.22