| 瞬变电磁法探测煤矿采空区的应用研究 |
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| 引用本文： | 张三敏,王娟,李增涛,魏晓航.瞬变电磁法探测煤矿采空区的应用研究[J].工程地球物理学报,2014,11(5):683-687. |
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| 作者姓名： | 张三敏 王娟 李增涛 魏晓航 |
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| 作者单位： | 西北有色地质勘查局物化探总队,陕西西安,710068 |
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| 摘 要： | 通过山西某煤矿采空区的瞬变电磁探测应用实例，分析总结了已知采空区不同工作频率瞬变电磁异常特征，指出了关断效应、延时效应、体积效应对瞬变电磁法应用效果的影响及解决方法；总结了煤矿采空区瞬变电磁探测的一般方法、工作程序，强调了方法和有效性试验的重要性；说明了瞬变电磁法探测煤矿采空区实用性和有效性；为今后煤矿采空区探测提供了一定的借鉴经验。
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| 关 键 词： | 瞬变电磁法 煤矿采空区 工作频率 关断效应 延时效应 体积效应 |
The Application of Transient Electromagnetic Method Detection of Coal Mine Goaf |
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| Zhang Sanmin,Wang Juan,Li Zengtao,Wei Xiaohang.The Application of Transient Electromagnetic Method Detection of Coal Mine Goaf[J].Chinese Journal of Engineering Geophysics,2014,11(5):683-687. |
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| Authors: | Zhang Sanmin Wang Juan Li Zengtao Wei Xiaohang |
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| Affiliation: | (Geophysical and Geochemical Exploration Corporation, Northwest Bureau of Geological Exploration for Nonferrous Metals, Xi＇ an, Shanxi 710068, China) |
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| Abstract: | Through the application of transient electromagnetic exploration in the goal of Shanxi coal mine, this paper analyzed and summarized the transient electromagnetic anoma- ly characteristics with different working frequency of the known goaf and pointed out the impacts and solutions of transient electromagnetic application caused by turn--off effect, delaying effect and volume effect. Then it summarized the general method and working pro- cedures of transients electromagnetic detection in the coal mining goaf, emphasized the im- portance of the method and the validity of the test and finally it explained the practicability and validity of using transient electromagnetic method in detecting coal mine goal, which will provide some experience in the future for the detection of coal mine goal. |
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| Keywords: | transient electromagnetic method coal--mining area working frequency turn -- off effect delay effect volume effect |
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