| 梁芳敏,黄志强,任鸿飞,魏继祖,唐荣京,刘鹏飞.瞬变电磁法和音频大地电磁法在煤下铝采空区探测中的应用研究[J].矿产勘查,2014,5(6):914-919 |
| 瞬变电磁法和音频大地电磁法在煤下铝采空区探测中的应用研究 |
| Application study of the transient electromagnetic method and audio magne-totelluric method on detection of mine goaf in the bauxite-coal mine area |
| 投稿时间：2014-03-17 |
| DOI： |
| 中文关键词: 瞬变电磁法 音频大地电磁法 采空区 |
| 英文关键词: transient electromagnetic method audio magnetotelluric method mine goaf |
| 基金项目:河南省国土资源厅地质科研项目(编号:2011-622-15)资助。 |
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| 中文摘要: |
| 在研究区应用瞬变电磁法和音频大地电磁法对采空区进行探测。先在已知采空区进行了方法组合的有效性试验,分析两种方法在采空区不同的异常响应特征,再利用已知采空区显示的电性特征,对未知空白区做了合理的解释,结合水文地质资料推断了采空影响区平面分布范围及剖面上的断面形态特征,为研究区煤下铝勘查工作提供保障。同时,探讨了瞬变电磁法和音频大地电磁法对采空区探测的有效性和局限性,为今后全省的采空区探测提供一些经验借鉴。 |
| 英文摘要: |
| The transient electromagnetic method and EH4 electromagnetic method were used to detect mine goaf in the study area. Firstly, the effective tests based on the composite methods were carried out in the known goaf area. Then analyzing the different abnormal response characteristics resulted from two kinds of methods. Based on the electrical characteristics of the known goaf in combination with hydrogeologic data, the unknown goaf area was interpreted and the sphere of influence of goaf and the morphological character of the cross section were inferred. Meanwhile, the effectiveness and limitation of application of these two methods for the detection of the mine goaf were discussed. The study result will provide valuable information for the detection of mine goaf in the provincial scope as well as the prospection of bauxite in the coal field. |
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