摘要
为了解决干塘煤矿巷道掘进时积水采空区的水害威胁,采用瞬变电磁法进行全空间探测,分析岩层电阻率差异识别富水异常区,并进行疏放水施工,消除采空区积水对巷道掘进的影响。实践结果表明,瞬变电磁法探测显示顶板、底板及顺层方向存在显著低阻异常区,探测区内岩层总体富水性强;通过对积水采空区进行疏放水,累计排水量3256 m^(3),消除了巷道掘进的水害威胁,证实了瞬变电磁法结合疏放水钻孔对矿井水害治理的有效性。
In order to solve the threat of water disaster in goaf during roadway excavation in Gantang Coal Mine,the transient electromagnetic method was used to detect the whole space,and the resistivity difference of rock strata was analyzed to identify the water abundance abnormal area and carry out water drainage construction,so as to eliminate the influence of water accumulation in goaf on roadway excavation.The practical results showed that the transient electromagnetic method detection indicated that there were significant low-resistance abnormal areas in the roof,floor and bedding direction,and the rock strata in the detection area were generally abundant in water.Through the drainage of the water-accumulated goaf,the cumulative drainage volume was 3256 m^(3),which eliminated the threat of water disaster in roadway excavation,and confirmed the effectiveness of transient electromagnetic method combined with drainage boreholes in the control of mine water disaster.
作者
陈甫
董东平
张东豪
周双良
朱加均
王登科
Chen Fu;Dong Dongping;Zhang Donghao;Zhou Shuangliang;Zhu Jiajun;Wang Dengke(Sichuan Furong Chuannan Construction Engineering Co.,Ltd.,Yibin 644000,China;Safety Science and Engineering College,Henan Polytechnic University,Jiaozuo 454000,China)
出处
《煤炭与化工》
2025年第11期58-61,共4页
Coal and Chemical Industry
关键词
煤矿水灾
积水采空区
掘进巷道
探放水
瞬变电磁法
视电阻率
coal mine water disaster
water accumulation goaf
excavating roadway
water exploration and discharge
transient electromagnetic method
apparent resistivity
