| 煤矿采空区勘探实例 |
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| 引用本文： | 李海燕,周志林,董哲. 煤矿采空区勘探实例[J]. 吉林地质, 2012, 31(1): 88-92,106 |
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| 作者姓名： | 李海燕 周志林 董哲 |
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| 作者单位： | 1. 吉林省煤田地质物探公司,吉林长春,130031
2. 吉林省宇光能源股份有限公司,吉林长春,130031 |
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| 摘 要： | 应用瞬变电磁法确定煤矿采空区及积水采空区十分准确,本文介绍了应用该方法确定某煤矿采空区及积水采空区。首先确定煤矿各种围岩阻值,通过钻孔孔旁视电阻率ρτ曲线与钻孔柱状对比,为异常解释建立理论模型,根据瞬变电磁实测数,通过分析,结合煤系地层的物性特征分析,确定煤矿采空区及积水采空区。
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| 关 键 词： | 孔旁实验 相对电性 采空区 积水采空区 |
Some exploration examples in coal mined-out areas |
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| LI Hai-yan,ZHOU Zhi-lin,DONG Zhe. Some exploration examples in coal mined-out areas[J]. Jilin Geology, 2012, 31(1): 88-92,106 |
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| Authors: | LI Hai-yan ZHOU Zhi-lin DONG Zhe |
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| Affiliation: | 1.Coalfield Geological and Geophysical Exploration Company of Jilin Province,Changchun 130031,Jilin,China;2.The Yuguang Energy Incorporated Company of Jilin Province,Changchun 130031,Jilin,China |
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| Abstract: | The transient electromagnetic method can accurately determine coal mined-out area and mined-out area with water.A certain coal mined-out area and mined-out area with water was determined by this method in this paper.Firstly,make sure resistivities of coal mine wall rocks,through the contrast of apparent resistivity curves ρτ and columnar diagram of drilling holes,established theory model for anomaly interpretation.According to the measured data of the transient electromagnetism,combining with characteristics of coal measure strata,determined coal mined-out area and mined-out area with water. |
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| Keywords: | experiment in the side of drilling holes relative electric property mined-out area mined-out area with water |
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