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Comparative Analysis of the Joint Properties of Granite and Granitic Gneiss by Depth
심도에 따른 대전지역 화강암과 안동지역 편마암의 절리특성 비교분석
Econ. Environ. Geol. 2019 Apr;52(2):189-
Published online April 30, 2019;  https://doi.org/10.9719/EEG.2019.52.2.189
Copyright © 2019 the Korean society of economic and environmental gelology.

Junghae Choi*
최정해*

Department of Earth Science Education, Kyungpook National University
경북대학교 지구과학교육과
Received February 9, 2019; Revised February 28, 2019; Accepted March 1, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
HLW (High Level Radioactive Waste) is one of the problems that must be solved in the countries that implement nuclear power generation. Most countries that are concerned about HLW treatment are considering complete isolation from human society by disposing them deep underground. For perfect isolation, understanding the characteristics of underground rocks is very important. In particular, understanding the characteristics of discontinuity as a path way is one of the first things in order to predict the movement of exposed nuclear species to the surface. In this study, we used 500m underground core samples obtained from granite and gneiss area. The purpose of this study is to understand the characteristics of the discontinuities in each rock type and to analyze the properties of the joints in the underground relative to the surrounding environment. For this purpose, the types of discontinuities were classified and the distribution of each discontinuity were analyzed through visual analysis of the each sample obtained at 500m underground. This study can be used as a basic data for understanding the properties of discontinuities in the rock of the survey area and it can be also used as an important data for understanding the distribution characteristics of discontinuities according to the rock types.
Keywords : high level radioactive waste, open fracture, sealed fracture, fracture distribution, filling material

 

April 2019, 52 (2)