岳安平, 王光杰, 李帝铨. 2007: 灰岩岩溶强烈发育区CSAMT法隧道勘查研究. 工程地质学报, 15(S2): 227-232.
    引用本文: 岳安平, 王光杰, 李帝铨. 2007: 灰岩岩溶强烈发育区CSAMT法隧道勘查研究. 工程地质学报, 15(S2): 227-232.
    YUE Anping, WANG Guangjie, LI Diquan. 2007: STUDY ON EXPLORATION FOR TUNNEL BY CSAMT METHOD IN KARST STRONGLY DEVELOPED AREA. JOURNAL OF ENGINEERING GEOLOGY, 15(S2): 227-232.
    Citation: YUE Anping, WANG Guangjie, LI Diquan. 2007: STUDY ON EXPLORATION FOR TUNNEL BY CSAMT METHOD IN KARST STRONGLY DEVELOPED AREA. JOURNAL OF ENGINEERING GEOLOGY, 15(S2): 227-232.

    灰岩岩溶强烈发育区CSAMT法隧道勘查研究

    STUDY ON EXPLORATION FOR TUNNEL BY CSAMT METHOD IN KARST STRONGLY DEVELOPED AREA

    • 摘要: 我国有大面积埋藏型可溶岩分布,对灰岩岩溶强烈发育区的地球物理勘查研究对隧道等工程建设有重要意义。对于工程所涉及深度的地层勘察,可控源音频大地电磁法(CSAMT)是一种比较有效的方法。在贵州某铁路隧道应用CSAMT法对灰岩岩溶强烈发育区地层进行了勘查研究。介绍了CSAMT法的基本原理、针对工程实际数据采集的特点,以及针对该地区的地形改正和静态校正的数据处理方法。分析原始曲线特征及反演结果比对,结合研究区地质资料,对CSAMT反演结果进行了地质解释指出了对工程有害的地层范围并提出了相应的建议。

       

      Abstract: There are large areas buried Karst distribution in China. Therefore,it has great significance on engi-neering constructions that launch the geophysical exploration study in limestone karst strongly developed area such as on tunnel projects. CSAMT method is effective to detect lays at required depth for projects. In this paper CSAMT method was applied on a railway tunnel in limestone karst strongly developed area in Guizhou province. The basic theory of CSAMT method was introduced,and the property of data acquisition correspond to actual situation was de-scribed,and then the methods of processing and interpretation on data influenced by terrain effect and static effect were represented. Geological interpretation was made based on the comparison between analyzed original curves and inversion results,combined the geological information of Study area also. Finally,the harmful zone to project are plotted out. Meanwhile,the corresponding recommendations are propounded.

       

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