Three-dimensional Model Construction and Application of Fault Trenching Based on Photogrammetry

被引：0
|
作者：
Zhang P. [1 ,2 ,3 ]
Li X. [2 ,3 ]
Zhang Y. [4 ]
Yu J. [5 ]
Xu Z. [6 ]
Huang Z. [2 ,7 ]
Lu J. [2 ,3 ]
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, Nanjing University, Nanjing
[4] Department of Civil Engineering, Nanjing University of Science and Technology, Nanjing
[5] Institute of Geotechnical Engineering, Huaqiao University, Xiamen
[6] Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan
[7] 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 | 2022年 / 30卷 / 05期
关键词：
Beishan preselected area; Fault; High radioactive waste geological repository; Internal structure; Permeability test; Stereophotogrammetry; Three-dimensional model of the exploratory trench;
D O I：
10.16058/j.issn.1005-0930.2022.05.009
中图分类号：
学科分类号：
摘要：
The fault internal structure and permeability coefficient effectively acquired is of great significance in identifying fault water conductivity. In this paper, a three-dimensional model of a fault trench in Beishan preselected area of high radioactive waste geological repository is established by means of stereophotogrammetry. The internal structure of the fracture is identified through refined three-dimensional model image analysis of the trench, and the indoor permeability test is conducted in typical units. The results shows that the other parts of the fault have good water conductivity except for the low-permeability characteristics of the crushed gravel and fault gouge in the core area of the fault, field in-site tests also verifies this judgment. To sum up, the three-dimensional model of the exploratory trench and the targeted permeability test have obvious advantages in the recognition of the fault internal structure and the determination of the macroscopic hydraulic conductivity. The research results can provide references for subsequent respect distance of fault and layout design of underground repository. © 2022, The Editorial Board of Journal of Basic Science and Engineering. All right reserved.
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页码：1161 / 1176
页数：15
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