井间电磁波CT技术在武汉地区三叠系大冶组岩溶勘察中的应用研究

基金项目:

武汉市轨道交通7号线一期工程岩溶专项勘察（KC2014-065）。

详细信息

Application of the Electromagnetic CT in Karst Exploration of T₁d in Wuhan

Wuhan Institute of Hydrogeology and Engineering Geology, Hubei Geological Bureau, Wuhan 430051, China

摘要: 电磁波CT在岩溶勘察中有着广泛的应用,本文结合钻孔资料对三叠系大冶组(T₁d)岩溶特征进行统计分析,确定划定该地层岩溶的视吸收系数值,将该参数值用于电磁波CT资料的解译,并通过验证孔对解译结果进行验证。该项研究解决了电磁波CT在岩溶勘察中异常识别的重要问题,为武汉地区三叠系大冶组(T₁d)岩溶勘察提供了重要的指导依据。
- 电磁波CT /
- 三叠系大冶组 /
- 岩溶勘察 /
- 视吸收系数
Abstract: The electromagnetic CT is widely used in the Karst exploration. The statistical analysis of the Karst which developed in T₁d, combining with drilling data, has been done in this paper. The apparent absorption coefficient of the Karst in this stratum has been determined, which is being used in the interpretation of the electromagnetic CT and being verified by the verification hole. The important issue of anomaly identification in electromagnetic CT has been solved in this study, which is able to provide important guidance for Karst exploration of T₁d in Wuhan.
- electromagnetic CT /
- T1d /
- Karst exploration /
- apparent absorption coefficient

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