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

被引：0
|
作者：
Zhang P. [1 ,2 ,3 ]
Li X. [2 ,3 ,4 ]
Zhang Y. [5 ]
Fan J. [2 ,3 ]
Song J. [2 ,3 ]
Huang Z. [2 ,6 ]
机构：
[1] College of Management Science and Engineering, Hebei University of Economics and Business, Shijiazhuang
[2] School of Earth Sciences and Engineering, Nanjing University, Nanjing
[3] Institute for Underground Space and Geoenvironment, School of Earth Sciences and Engineering, Nanjing University, Nanjing
[4] Sino Probe Center, Chinese Academy of Geological Sciences, Beijing
[5] Department of Civil Engineering, Nanjing University of Science and Technology, Nanjing
[6] School of Resources and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou
来源：
Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering | 2019年 / 27卷 / 05期
关键词：
Comprehensive identification; Fault; High-density electrical geophysics; High-level radioactive waste disposal sites; UAV;
D O I：
10.16058/j.issn.1005-0930.2019.05.003
中图分类号：
学科分类号：
摘要：
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. © 2019, The Editorial Board of Journal of Basic Science and Engineering. All right reserved.
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页码：971 / 985
页数：14
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