| 煤层上覆地层含水不均匀性电法探测的可能性 |
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| 引用本文： | 底青云,王妙月.煤层上覆地层含水不均匀性电法探测的可能性[J].地球物理学进展,2003,18(4):707-710. |
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| 作者姓名： | 底青云 王妙月 |
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| 作者单位： | 中国科学院地质与地球物理研究所,北京,100029 |
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| 基金项目： | 国家自然科学基金项目(40027001)资助. |
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| 摘 要： | 煤田上覆岩层中含水直接对煤层的开采构成威胁，本文先从理论上阐述了电阻率勘探可以探测煤层上覆地层含水不均匀性的可能性，然后用简单的断层型薄层含水模型的CSAMT正演模拟结果展示出：地下900m深处，尽管只有20m厚的的含水岩层，但在电阻率剖面上该薄层的反映具有非常明显的特征，从理论上和数值模拟实例说明，一定深度内一定厚度的薄层含水性的电阻率法探测是可能的。
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| 关 键 词： | 煤层 含水性 高密度电法 CSAMT 探测 |
| 文章编号： | 1004-2903(2003)04-0707-04 |
| 修稿时间： | 2003年4月20日 |
Prospecting possibility with electric method for thin water-bearing rock layer upper the coal layers |
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| DI Qing-yun,WANG Miao-yue.Prospecting possibility with electric method for thin water-bearing rock layer upper the coal layers[J].Progress in Geophysics,2003,18(4):707-710. |
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| Authors: | DI Qing-yun WANG Miao-yue |
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| Abstract: | One always worries about the thin water-bearing rock layer upper on the coal layers, because this thin earth layer can cause the water disaster to the coal mineral. The paper introduces theoretically that electric method can prospect the water-bearing earth layer upper on the coal layers, and then shows the CSAMT forward modeling results for a fault thin water-bearing model that are produced by finite element method, it tells us: the response for the thin water-bearing which is on a certain depth is very clear on CSAMT profiles, even the thin layer is about 20 meters. The theoretical and forward modeling results both show that it is possible to prospect the thin water-bearing earth layer with electric methods. |
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| Keywords: | coal layer water-bearing high-density electric method CSAMT prospecting |
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