综合勘查手段对活断层的勘查验证与探讨  

Application and study of Controlled Source Audio-frequency magnetotellurics in the geological investigation of active fault

作　　者：洪波[1] HONG Bo(Hua bei geological survey bureau nuclear industry No 247 brigade,Tianjin 300180,China)

机构地区：[1]天津华北地质勘查局核工业247大队

出　　处：《世界有色金属》2019年第16期264-265,共2页World Nonferrous Metals

摘　　要：本文基于某水电站工程活断层的勘查过程中,针对第四系土层埋藏厚度较大的半隐伏半出露的断层,采用可控音频大地电磁法进行判别。针对电磁法判别的断层区域采用各种不同的勘查手段的综合运用进行断层认证,在对电磁法判别结果进行验证的同时,查明了活断层的位置、走向、影响带宽度、大致发育深度等,同时总结了活断层勘查过程中的要点、难点和工作流程,为类似工程勘查提供了借鉴和参考。Based on results of the supplementary feasibility study geological and geotechnical investigation of some hydropower project about the active fault,Comprehensive methods are applied,it ascertains location,strike(orientation and dips),width of affected band,approximate depth of the active fault.at the same time,key points,difficulties and working procedures during the geological and geotechnical investigations are summarized,lot of data,results and figures are offered and analyzed,these methods and procedures can be mirrored and inferred in the future similar project.

关 键 词：活断层 高频大地电磁法(EH4) 声波 

分 类 号：P631.322[天文地球—地质矿产勘探]