高放废物地质处置算井子地段地质条件适宜性研究

doi:10.11720/wtyht.2021.0388

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Abstract

Based on investigations of geological characteristics of ground surface and deep parts and three-dimensional geological modeling, this study preliminarily ascertains the lithology of rock masses and the spatial distribution characteristics of faults in the Suanjingzi area, obtaining and the following understanding. In terms of lithology, the Suanjingzi area mainly consists of granodiorites with an exposed area of about 176 km² and a depth of more than 2 km. The granites occur in the form of batholith and are generally distributed in the NE-SW trending, which is consistent with the direction of the main tectonic line in the study area. Meanwhile, they feature single lithology, high integrity of deep rock masses, and slight rock alteration. There are nine faults in the study area in total. They have roughly developed in rock masses and have steep dip angles. A rock mass with an area of greater than 31 km² can be selected from the granites, which has single lithology, large enough volume, and high integrity and maybe used as a candidate site of the disposal repository of high-level radioactive wastes in the future. Overall, the Suanjingzi area has suitable geological conditions as a pre-selected site for the geological disposal of high-level radioactive wastes.

Key words： geological disposal of high-level radioactive wastes Suanjingzi area geological conditions geological modeling

Received: 14 June 2021 Published: 15 December 2021

ZTFLH:	P587
	P597.3

Corresponding Authors: LUO Hui E-mail: 45493666@qq.com;luo1029hui@163.com

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	Articles by authors
	Shi JIANG
	Hui LUO
	Wei-Ming CHEN
	Ya-Wei LI
	Yuan-Xin JIN

Cite this article:

Shi JIANG,Hui LUO,Wei-Ming CHEN, et al. Suitability of geological conditions in Suanjingzi area for the disposal of high-level radioactive wastes[J]. Geophysical and Geochemical Exploration, 2021, 45(5): 1208-1216.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.0388 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I5/1208

Geological map of Suanjingzi area

Statistics on the outcropping of each layer in the Shoujingzi area

Structural features of faults in the Suanjingzi area

Two-dimensional inversion of resistivity of AMT probe profiles for geoelectrical area

Statistics of inclination angle of core fissures in BS22 and BS23

The degree of development of core fissures varies with depth in BS22 and BS23

Comparison value of J_v and K_v

Statistics of rock integrity in BS22 and BS23

Three-dimensional fracture model of Shoujingzi section

Three-dimensional geological model of Shoujingzi section

Fig.6)
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Three-dimensional relationship between granite bodies and faults in Shoujingzi area(the legend description is the same as Fig.6)

Fig.6)
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The spatial location of the potential site(the legend description is the same as Fig.6)

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