| 露天煤矿地下水电磁探测与类型判别 |
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| 引用本文： | 王鹏,兰云飞.露天煤矿地下水电磁探测与类型判别[J].CT理论与应用研究,2019,28(1):91-98. |
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| 作者姓名： | 王鹏 兰云飞 |
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| 作者单位： | 中煤科工集团西安研究院有限公司,西安,710077;云南方圆中正工贸有限公司,昆明650000;楚雄州煤炭行业协会,云南楚雄675000 |
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| 基金项目： | 国家重点研发计划（2017YFC0804105）；中国煤炭科工集团有限公司科技创新创业资金专项（2018MS006）；中煤科工集团西安研究院有限公司2017年度科技创新基金（2017XAYZD12）。 |
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| 摘 要： | 为准确确定露天煤矿地下水分布与类型,根据不同赋存条件电磁差异,基于磁场强度与电阻率参数进行异常划分与类型判别。以新疆某露天煤矿为例,采用高精度磁法通过磁异常强度确定烧变岩边界,并采用高密度电法和瞬变电磁法通过电阻率圈定低阻异常区,结合异常响应差异分别推断地下水分布范围与赋存类型。地面钻探验证探测成果的准确性。结果表明:露天煤矿烧变岩水与砂岩裂隙水电磁响应差异明显,基于磁场强度与电阻率的双参数综合电磁法能准确圈定其分布范围,并判别其赋存类型。
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| 关 键 词： | 露天煤矿 烧变岩水 裂隙水 综合电磁法 电磁性差异 |
| 收稿时间： | 2018-10-31 |
Electromagnetic Detection and Classification of Underground Water in Open Pit Coal Mines |
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| WANG Peng,LAN Yunfei.Electromagnetic Detection and Classification of Underground Water in Open Pit Coal Mines[J].Computerized Tomography Theory and Applications,2019,28(1):91-98. |
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| Authors: | WANG Peng LAN Yunfei |
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| Institution: | 1. Xi'an Research Institute of China Coal Technology & Engineering Group Corp, Xi'an 710077, China;2. Yunnan Fangyuan Zhongzheng Industry and Trade Co., Ltd., Kunming 650000, China;3. Chuxiong Coal Industry Association, Chuxiong 675000, China |
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| Abstract: | In order to accurately detect the underground distribution of burning rock and fissure water in open pit coal mine, a comprehensive electromagnetic detection method based on magnetic field intensity and resistivity is proposed, because different occurrence conditions groundwater has electromagnetic difference. Taking an open-pit coal mine in Xinjiang as an example, the boundary of the burnt rock is determined by the intensity parameter of magnetic anomaly, the low resistivity area at different depths is delineated by resistivity method combined with high-density electrical method and transient electromagnetic method, the distribution of burning rock water and fissure water is deduced separately according to geological conditions. The accuracy of the detection results is verified by ground drilling. The results show that the electromagnetic response of groundwater in the burning rock and fissure development area of open pit coal mine is obviously different, and the distribution range can be accurately delineated based on the two parameter comprehensive electromagnetic method according to the magnetic field intensity and resistivity. |
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| Keywords: | open pit coal mine burning rock water fissure water integrated electromagnetic method differences in electricity and magnetism |
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