工作面掘进期间老空水探测与防治  

Detection and Prevention of Goaf Water during Face Excavation

作　　者：姚泽峰 Yao Zefeng(Geology Dept.,Lvliangshan Coal and Electricity Co.,Ltd.,Huozhou Coal and Electricity Group,Fangshan,Shanxi 033102)

机构地区：[1]霍州煤电集团吕梁山煤电有限公司地质处,山西方山033102

出　　处：《江西煤炭科技》2022年第1期139-141,共3页Jiangxi Coal Science & Technology

摘　　要：木瓜矿10-102工作面回风顺槽在掘进期间巷道涌水量突然增大,根据相关地质资料得知该面上方存在老空水。为了保证掘进的顺利进行,采用瞬变电磁法对掘进面前方100 m进行了探测。探测结果表明在巷道左前方存在含水区域,即于50~70 m(-30~-50 m)的区域内存在明显低阻异常区。钻探验证得出该区域为9-104采空区积水造成的低阻异常,出水点位于掘进面前方53 m、巷道左帮45 m处,主体部分位于煤层顶板上方4.5 m。结合巷道顶底板情况和现场条件采用定向钻孔技术对9-104采空区积水进行疏放,排放老空水96 000 m^(3)后,各个钻孔涌水量均趋于正常,保证了巷道的安全掘进。It is believed that there is goaf water in the upper part of the face due to the sudden increase of water inflow of the roadway in 10-102 working face of Mugua Colliery. In order to ensure the smooth progress of the excavation, a transient electromagnetic method has been used to detect 100 m in front of the heading face, which shows there is a water-bearing area in the left front of the roadway, that is, there is an obvious low-resistance anomaly area in the coordinate area 50~70 m(-30~-50 m). Drilling verification shows that this area is abnormal low resistance caused by water in the 9-104 goaf. The water outlet is located 53 m ahead of the excavation, 45 m from the left side of the roadway, and the main part is 4.5 m above the roof.Combining the roof and floor conditions of the roadway and the site conditions, the directional drilling technology has been used to drain the water in the 9-104 goaf. After discharging a total of 96,000 m^(3) of goaf water, the water inflow of each borehole tends to be normal, which ensures the safety excavation of the roadway.

关 键 词：老空积水 钻孔疏排水 瞬变电磁法 定向钻孔 

分 类 号：TD745[矿业工程—矿井通风与安全]