综合航测与物探的候选场址区断裂识别研究  

Identification of Geological Faults and Their Properties in Candidate Sites Using Aerial Surveying and Geophysical Exploration

作　　者：张培兴 李晓昭[2,3,4] 章杨松[5] 凡净 宋金龙[2,3] 黄震 ZHANG Peixing;LI Xiaozhao;ZHANG Yangsong;FAN Jing;SONG Jinlong;HUANG Zhen(College of Management Science and Engineering,Hebei University of Economics and Business,Shijiazhuang 050061,China;School of Earth Sciences and Engineering,Nanjing University,Nanjing 210046,China;Institute for Underground Space and Geoenvironment,School of Earth Sciences and Engineering,Nanjing University,Nanjing 210046,China;Sino Probe Center,Chinese Academy of Geological Sciences,Beijing 100037,China;Department of Civil Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;School of Resources and Environment Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China)

机构地区：[1]河北经贸大学管理科学与工程学院,河北石家庄050061 [2]南京大学地球科学与工程学院,江苏南京210046 [3]南京大学地下空间与地质环境研究所,江苏南京210046 [4]中国地质科学院地球深部探测中心,北京100037 [5]南京理工大学土木工程系,江苏南京210094 [6]江西理工大学资源与环境工程学院,江西赣州341000

出　　处：《应用基础与工程科学学报》2019年第5期971-985,共15页Journal of Basic Science and Engineering

基　　金：国家重点基础研究发展计划(973计划)(2013CB036001);国防科技重点项目(科工二司[2015]297号);国家自然科学基金项目(41702326);博士后创新人才支持计划(BX201700113);河北经贸大学科研基金项目(2019QN01);河北经贸大学博士科研启动经费(0112190705)

摘　　要：断裂是高放废物处置场址区中放射性核素向生物圈运移的潜在通道,由于断裂空间变异性强,在广袤的地表出露不明显,仅依靠踏勘与有限的钻探难以获取其详细的构造特征信息.为了有效探明断裂构造特征,以某重点候选场址区西北边界断裂为研究对象,采用一种工程场区无人机航测全局"把控"与高密度电法重点"把脉"断裂的综合识别方案,获取了裂隙密度、裂隙交切模式、断裂产状、核部宽度以及损伤破碎带宽度等信息.野外踏勘与探槽验证表明,利用航测与物探综合解译能够快速而有效识别断裂信息,可为断裂内在结构识别及其导水性关系研究提供丰富的数据资料,最终服务于处置工程布局设计.For high-level radioactive waste disposal sites,faults can form potential migration pathways for radionuclides to reach the biosphere.Due to the strong spatial variability of fault zone geometry,extrapolating faults from outcrops to depth is of limited reliability.Drilling can help detect faults at depth and constrain their geometry,but this only provides observations at discrete locations.This paper presents a comprehensive identification for fault analysis which combines unmanned aerial vehicle(UAV) surveying with high-density electrical geophysics.The methodology yields observations on the fracture frequency,the fracture termination type,occurrence of the fault,width of the fault core, width of the damage zone and so on.Mapping of the fault in the field and trenches shows that the comprehensive interpretation of aerial survey and geophysical survey correctly detects the fault.This data provides essential information on the hydrological characteristics of the geology surrounding candidate sites and will be vital in the design of future repositories.

关 键 词：高放废物地质处置 断裂 无人机航测 高密度电法 综合识别 

分 类 号：P231[天文地球—摄影测量与遥感] P631[天文地球—测绘科学与技术]