| 高密度电阻率法在海底金矿含水构造探测中的应用 |
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| 引用本文： | 马凤山,底青云,李克蓬,付长民,王善飞,李威.高密度电阻率法在海底金矿含水构造探测中的应用[J].地球物理学报,2016,59(12):4432-4438. |
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| 作者姓名： | 马凤山 底青云 李克蓬 付长民 王善飞 李威 |
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| 作者单位： | 1. 中国科学院页岩气与地质工程重点实验室 中国科学院地质与地球物理研究所, 北京 100029;2. 山东黄金矿业(莱州)有限公司三山岛金矿, 山东莱州 261442 |
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| 基金项目： | 国家重点研发计划课题（2016YFC0402802），国家自然科学基金面上项目（41172271，41372323）联合资助. |
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| 摘 要： | 海底金矿上覆岩层中含水直接对矿床的开采构成威胁,选择山东三山岛金矿新立矿区海底-135m水平沿脉巷道,采用地球物理高密度电阻率法对该巷道635m测线以下200m深度范围内岩体中的含水构造进行了坑道探测,利用三种装置(温纳装置(Wenner)、偶极装置(Dipole-Dipole)、Schlumberger装置)进行实施,相互验证,取得了很好的探测结果.温纳、偶极和Schlumberger三种装置的视电阻率反演结果反映在测线(-135m沿脉巷道)以下至30m深度为一高阻层,表明自-135~-165m的岩体中已不含水或含少量的水;测线以下30~60m段为低阻层,反映-165~-200m的岩体中含基岩裂隙水;测线以下大于60m的地段为特高阻层,反映-200m以下岩体含水性逐渐变差.该探测结果与矿区水文地质结构调查分析结论具有很好的一致性,表明了坑道高密度电阻率法探测含水构造是可行的.
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| 关 键 词： | 海底采矿 含水构造 高密度电阻率法 坑道探测 |
| 收稿时间： | 2016-05-29 |
Application of high-density resistivity method in detecting water-bearing structures at a seabed gold mine |
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| MA Feng-Shan,DI Qing-Yun,LI Ke-Peng,FU Chang-Min,WANG Shan-Fei,LI Wei.Application of high-density resistivity method in detecting water-bearing structures at a seabed gold mine[J].Chinese Journal of Geophysics,2016,59(12):4432-4438. |
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| Authors: | MA Feng-Shan DI Qing-Yun LI Ke-Peng FU Chang-Min WANG Shan-Fei LI Wei |
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| Institution: | 1. Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;2. Sanshandao Gold Mine, Shandong Gold Mining(Laizhou) Company Limited, Shandong Laizhou 261442, China |
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| Abstract: | The water in the overlying rock of seabed gold mine directly threats the exploitation safety. The strike drift at -135 m level of the Xinli mine district of Sanshandao gold mine in Shandong province, was selected to be the applicable site for high-density resistivity method, using which to detect water-bearing structures in surrounding rock 200 meters below a measuring line of 635 m long. Three DC devices including Wenner, Dipole-Dipole and Schlumberger were implemented in the selected drift respectively, authenticated each other and collected good detections. The apparent resistivity inversion results of these devices give the consistent conclusion that three different resistive layers exist under the strike drift. The rock mass of 30 m thick under the level of -135 m is a high resistivity layer, which indicates no or little water in the rock mass between the levels of -135 m and -165 m. The rock mass ranging from 30 m to 60 m in depth under the level of -135 m has low resistivity and bears fracture water. And a very high resistivity layer deeper than 60 m under -135 m indicates the aquosity of the rock mass under -200 m progressively decreases. These detection results show well agreement with the conclusions of field hydrogeology surveys and hydrological structure analyses and that high-density resistivity method is feasible for uncovering water-bearing structures in drift. |
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| Keywords: | Seabed mining Water-bearing structure High-density resistivity method Gallery detection |
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