高密度电阻率成像法在地质灾害勘察中的应用  

Application of High-density Resistivity Tomography in Geological Hazard Survey

作　　者：姚敏 吕小红 杨宏智 YAO Min;LYU Xiaohong;YANG Hongzhi(Shandong Institute of Geophysical&Geochemical Exploration,Ji'nan 250013,China;Technical Research Center of Geological Exploration Engineering of Shandong Province,Ji'nan 250013,China;No.1 Institute of Geology and Mineral Resources of Shandong Province,Ji'nan 250014,China)

机构地区：[1]山东省物化探勘查院,济南250013 [2]山东省地质勘查工程技术研究中心,济南250013 [3]山东第一地质矿产勘查勘查院,济南250014

出　　处：《华北地震科学》2020年第2期62-67,共6页North China Earthquake Sciences

基　　金：山东省水利科研与技术推广项目(SDSLKY201907)。

摘　　要：在山东济南岩溶勘察及矽卡岩型铁矿采空区勘察中,受场地及人为干扰限制,分别采用并行高密度电阻率法地面装置及井中装置进行探测,根据反演电阻率成果圈定的低阻异常,指导相应钻探验证工作。经钻探验证,岩溶勘察中推断低阻异常基本为充填岩溶或破碎带引起,采空区勘察中推断的低阻异常为富水采空区引起,验证效果较好。并行高密度电阻率法工作形式多样灵活,采集数据量大,工作效率高,受场地限制少,反演成果分辨率高,可以用于岩溶、采空区勘察及其他地质灾害勘察工作。In the exploration of karst and mine gob in Ji'nan,Shandong province,restricted by site and human interference,the ground device and well device by ultra-high density resistivity method were respectively adopted to delineate the low resistivity anomaly based on the inversion resistivity results,which guided the corresponding drilling verification work.It is verified by drilling that the low-resistivity anomalies inferred in karst exploration are basically caused by filling karst or crushing zone,while the low-resistivity anomalies inferred in goaf exploration are caused by filling goaf,and the verification results are all good.With various and flexible working forms,large amount of data collection,high working efficiency,less site limitation and high resolution,the method can be used for karst,goaf and other geological hazard investigation.

关 键 词：地面 井间 电阻率成像 岩溶 铁矿采空区 反演成果 

分 类 号：P631.3[天文地球—地质矿产勘探]