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2022 Vol.32, Issue 6 Preview Page

Technical Note

Case Studies of Indirect Coupled Behavior of Rock for Deep Geological Disposal of Spent Nuclear Fuel

사용후핵연료 심층처분을 위한 암석의 간접복합거동 연구사례

Hoyoung Jeong1
,
Juhyi Yim2*
,
Ki-Bok Min3
,
Sangki Kwon4
,
Seungbeom Choi5
,
Young Jin Shin6
정 호영1
,
임 주휘2*
,
민 기복3
,
권 상기4
,
최 승범5
,
신 영진6
1Assistant Professor, Department of Energy Resources Engineering, Pukyong National University
2Researcher, Convergence and Open sharing System for New Energy Industry, Seoul National University
3Professor, Department of Energy Resources Engineering, Seoul National University
4Professor, Department of Energy Resources Engineering, Inha University
5Senior Researcher, Disposal safety evaluation research division, Korea Atomic Energy Research Institute
6Senior Researcher, R&D Center, Hyundai Engineering and Construction
1부경대학교 에너지자원공학과 조교수
2서울대학교 에너지신산업 혁신공유대학사업단 연구원
3서울대학교 에너지자원공학과 교수
4인하대학교 에너지자원공학과 교수
5한국원자력연구원 저장처분기술관리부 선임연구원
6현대건설 기술연구소 책임연구원
*Corresponding Author
31 December 2022. pp. 411-434
PDF XML Citation
Abstract

In deep geological disposal concept for spent nuclear fuel, it is well-known that rock mass at near-field experiences the thermal-hydraulic-mechanical (THM) coupled behavior. The mechanical properties of rock changes during the coupled process, and it is important to consider the changes into the analysis of numerical simulation and in-situ tests for long-term stability evaluation of nuclear waste disposal repository. This report collected the previous studies on indirect coupled behaviors of rock. The effects of water saturation and temperature on some mechanical properties of rock was considered, while the change in hydraulic conductivity of rock due to stress was included in the indirect coupled behavior.

Keywords
Indirect coupled behavior
Deep geological disposal
Properties of rock

사용후핵연료의 심층처분 개념에서 근계영역 암반은 열-수리-역학적 복합거동을 하게 되는 것으로 잘 알려져 있다. 이러한 복합거동 과정에서 암석의 여러 물성들은 변화하는데, 이러한 물성변화를 합리적으로 반영하는 경우 고준위방사성폐기물 처분장의 장기안정성의 평가를 위해 활용되는 해석 및 현장시험의 신뢰도를 향상시킬 수 있다. 이를 위해 본 기술보고에서는 암석의 열-수리-역학적 간접복합거동에 관한 국내외 연구사례를 조사하고 분석하였다. 특히, 간접복합거동의 대표적인 사례 중 지하수에 의한 포화 및 온도 증가에 따른 암석의 여러 물성 변화, 응력 변화에 의한 투수계수 변화를 중점적으로 조사·요약하였다.

키워드
간접복합거동
심층처분
암석물성
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Information
  • Publisher :Korean Society for Rock Mechanics and Rock Engineering
  • Publisher(Ko) :한국암반공학회
  • Journal Title :Tunnel and Underground Space
  • Journal Title(Ko) :터널과 지하공간
  • Volume : 32
  • No :6
  • Pages :411-434
  • Received Date : 2022-12-07
  • Revised Date : 2022-12-13
  • Accepted Date : 2022-12-14
  • DOI :https://doi.org/10.7474/TUS.2022.32.6.411
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