井下瞬变电磁技术在探测煤矿老空水方面的应用
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摘要
介绍了全空间瞬变电磁(UWTEM)技术在煤矿井下探测老空水方面的应用,研究了井下巷道有限施工条件下探测不同赋存方位采空区的方法,证明了UWTEM技术在探测巷道掘进头前方、巷道顶底板及巷道侧帮等方向老空水的有效性,总结了井下瞬变电磁技术应用中需注意的若干关键问题。结果表明,UWTEM技术能在井下有效地探测巷道顶底板、侧帮及掘进头前方的老空水位置和范围,为井下水害预报和防治提供可靠依据。
This paper introduces the application of Underground Whole-space Transient Electromagnetic Method(UWTEM)to the detection of abandoned mine water.It presents the study of the method to detect different occurrence goaves in limited work conditions.It proves the effectiveness of UWTEM technology in detecting goaf water ahead of the tunneling,or in the roof,floor and sides of the roadway.It concludes several key issues which require notice in the application of UWTEM.The result shows that UWTEM technology can effectively detect both the position and extent of goaf water ahead of the tunneling,or in the roof,floor and sides of the roadway.It also provides reliable basis for prediction and prevention of mine water disasters.
This paper introduces the application of Underground Whole-space Transient Electromagnetic Method(UWTEM)to the detection of abandoned mine water.It presents the study of the method to detect different occurrence goaves in limited work conditions.It proves the effectiveness of UWTEM technology in detecting goaf water ahead of the tunneling,or in the roof,floor and sides of the roadway.It concludes several key issues which require notice in the application of UWTEM.The result shows that UWTEM technology can effectively detect both the position and extent of goaf water ahead of the tunneling,or in the roof,floor and sides of the roadway.It also provides reliable basis for prediction and prevention of mine water disasters.
引文
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郭纯,刘白宙,白登海.2006.地下全空间瞬变电磁技术在煤矿巷道掘进头的连续跟踪超前探测[J].地震地质,28(3):456—462.GUO Chun,LIU Bai-zhou,BAI Deng-hai.2006.Prediction of water disasters ahead of tunneling in coal mine using continuous detection by UWTEM[J].Seismology and Geology,28(3):456—462(in Chinese).
蒋邦远.1998.实用近区磁源瞬变电磁法勘探[M].北京:地质出版社.JIANG Bang-yuan.1998.Applied near-zone magnetic source transient electromagnetic exploration[M].GeologicalPublishing House,Beijing(in Chinese).
牛之链.1992.时间域电磁法原理[M].长沙:中南工业大学出版社.NIU Zhi-lian.1992.Principle of time domain electromagnetic method[M].Central South University of TechnologyPublishing House,Changsha(in Chinese).
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