高密度电法立体显示技术在岩溶探测中的应用  

Application of Stereo Display of High Density Resistivity Method to Karst Exploration

作　　者：陈亚乾 李天 普新凯 李凯 Chen Yaqian;Li Tian;Pu Xinkai;Li Kai(No.1 Engineering Survey and Design Co., Ltd. of YCIH, Kunming Yunnan 650031, China)

机构地区：[1]云南建投第一勘察设计有限公司,云南昆明650031

出　　处：《工程地球物理学报》2020年第3期366-372,共7页Chinese Journal of Engineering Geophysics

摘　　要：岩溶给建筑物的施工和使用带来了许多安全隐患和经济损失。为直观分析岩溶分布规律,引入基于Matlab三维可视化功能的高密度电法立体成图流程,并将该方法应用在某高速路和建筑物场地的岩溶探测项目中,获得了电阻率剖面的立体成果。同时通过对立体成果中视电阻率的异常形态、数值进行分析,总结出了该区域的岩溶分布规律和范围。对比地质资料和现场情况,此次应用研究表明,高密度电法剖面的立体显示能够准确地反映岩溶等地质情况。Karst has brought many hidden dangers and economic losses to the construction and use of buildings.In order to analyze the law of karst distribution intuitively,this paper introduces the process of high density resistivity stereo mapping based on three-dimensional visualization function of Matlab.Compared with conventional three-dimensional visualization software,the images obtained by this method are more real and reliable,and contain topographic information.This method is applied to a karst exploration project on a highway to obtain three-dimensional results of resistivity profiles.Based on the analysis of anomalous shape and numerical value of apparent resistivity in three-dimensional results,the distribution law and scope of karst in this area are summarized.By comparing the geological data with the field situation,the application research shows that the high-density resistivity method can accurately reflect the geological conditions like karst in the process of stereoscopic display of karst.

关 键 词：高密度电法 电阻率 三维可视化 岩溶探测 

分 类 号：P631.3[天文地球—地质矿产勘探]