跨孔电阻率CT法的数值模拟及实例分析

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英文篇名：Numerical Simulation and Case Analysis of Cross-hole Resistivity CT Method 作者：陈秀清 ; 肖宏跃 ; 周茜茜 ; 甯艳 ; 邓唯淅 英文作者：Chen Xiuqing;Xiao Hongyue;Zhou Xixi;Ning Yan;Deng Weixi;Engineering and Environmental Geophysical Laboratory, Institute of Geophysics,Chengdu University of Technology; 关键词：电阻率CT ; 岩溶 ; 数值模拟 ; 正反演 ; 响应分析 英文关键词：resistivity CT;;karst;;numerical simulation;;positive inversion;;response analysis 中文刊名：KCKX 英文刊名：Site Investigation Science and Technology 机构：成都理工大学地球物理学院工程与环境物探实验室; 出版日期：2019-06-20 出版单位：勘察科学技术 年：2019 期：No.224 语种：中文; 页：KCKX201903016 页数：3 CN：03 ISSN：13-1100/TF 分类号：56-58

摘要

该文介绍了跨孔电阻率CT法的原理,并且考虑溶洞填充物与围岩电阻率差异,利用数值模拟建立地电模型,讨论了视电阻率响应、反演成像,结合工程实例进行了综合分析。实例验证了跨孔电阻率CT法用于岩溶探测是有效的,可指导实际工程。
        In this paper, the principle of cross-hole resistivity CT method is introduced,and the difference of resistivity between karst cave filler and surrounding rock is considered. A geoelectric model is established by numerical simulation. The apparent resistivity response and inversion imaging are discussed. A comprehensive analysis is made with engineering examples.The examples show that the cross-hole resistivity CT method is effective in karst detection and it can guide the practical engineering.

引文

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