地震CT技术在复杂岩溶坝基渗漏探测工程中的应用
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摘要
地震CT获得的结果是地下介质弹性波速度的空间分布,与电磁波CT相比,弹性波速度与介质力学性质的关系要密切得多,更有利于确定异常性质。以云南文山某水电站大坝为例,介绍了地震跨孔CT技术在复杂岩溶坝基渗漏探测工程中的应用及应注意的问题。
The exploration result of Seismic Computerized Tomography(SCT)is the spatial distribution of elastic wave velocity of medium.Compared with Electro-Magnetic wave,the relationship is closer between elastic wave velocity and mechanical characteristics of medium,so SCT is more advantageous than Electro-Magnetic Computerized Tomography in determining the elasticity characteristics of medium.Exemplified by a dam of the hydroelectric station in Wenshan of Yunnan,SCT technology was applied to detect the water leakage path of the dam base in Karst area,and some problems that should be paid attention to in application were pointed out.
引文
黄金莉,刘家琦,欧阳代俊,等.1994.工程物探中地震层析成像的研究[J].地球物理学报,36(5):682-687.
    全亚荣,陈周平.2000.层析技术在岩溶地区岩土工程勘察中的应用[J].中山大学学报(自然科学版),39(2):114-118.
    杨文采,李幼铭.1993.应用地震层析成像[M].北京:地质出版社.

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