터널과지하공간 (Tunnel and Underground Space)

  • 제32권6호
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  • Pages.411-434
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  • 2022
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  • 1225-1275(pISSN)
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  • 2287-1748(eISSN)
한국암반공학회 (Korean Society for Rock Mechanics and Rock Engineering)
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사용후핵연료 심층처분을 위한 암석의 간접복합거동 연구사례

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

  • 정호영 (부경대학교 에너지자원공학과) ;
  • 임주휘 (서울대학교 에너지신산업 혁신공유대학사업단) ;
  • 민기복 (서울대학교 에너지자원공학과) ;
  • 권상기 (인하대학교 에너지자원공학과) ;
  • 최승범 (한국원자력연구원 저장처분기술관리부) ;
  • 신영진 (현대건설 기술연구소)
  • Hoyoung, Jeong (Department of Energy Resources Engineering, Pukyong National University) ;
  • Juhyi, Yim (Convergence and Open sharing System for New Energy Industry, Seoul National University) ;
  • Ki-Bok, Min (Department of Energy Resources Engineering, Seoul National University) ;
  • Sangki, Kwon (Department of Energy Resources Engineering, Inha University) ;
  • Seungbeom, Choi (Disposal safety evaluation research division, Korea Atomic Energy Research Institute) ;
  • Young Jin, Shin (R&D Center, Hyundai Engineering and Construction)
  • 투고 : 2022.12.07
  • 심사 : 2022.12.14
  • 발행 : 2022.12.31
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초록

사용후핵연료의 심층처분 개념에서 근계영역 암반은 열-수리-역학적 복합거동을 하게 되는 것으로 잘 알려져있다. 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.

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.

키워드

과제정보

이 논문은 2022년도 정부(산업통상자원부)의 재원으로 사용후핵연료관리핵심기술개발사업단 및 한국에너지기술평가원의 지원을 받아 수행된 연구입니다(No. 2021040101003C). 또한, 제 1저자는 교육부 재원 한국연구재단의 지원(2021R1G1A1091572)을 받았습니다. 연구 지원에 감사드립니다.

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