Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
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Rock Mechanical Aspects in Site Characterization for HLW Geological Disposal: Current Status and Case Studies

고준위방사성폐기물 심층처분 부지조사를 위한 암반공학적 요소: 국내외 현황 및 사례 조사

  • Choi, Seungbeom (Center for HLW Geological Disposal, Korea Institute of Geoscience and Mineral Resources) ;
  • Kihm, You Hong (Center for HLW Geological Disposal, Korea Institute of Geoscience and Mineral Resources) ;
  • Kim, Eungyeong (Center for HLW Geological Disposal, Korea Institute of Geoscience and Mineral Resources) ;
  • Cheon, Dae-Sung (Center for HLW Geological Disposal, Korea Institute of Geoscience and Mineral Resources)
  • 최승범 (한국지질자원연구원 방사성폐기물지층처분연구단) ;
  • 김유홍 (한국지질자원연구원 방사성폐기물지층처분연구단) ;
  • 김은경 (한국지질자원연구원 방사성폐기물지층처분연구단) ;
  • 천대성 (한국지질자원연구원 방사성폐기물지층처분연구단)
  • Received : 2020.03.25
  • Accepted : 2020.04.24
  • Published : 2020.04.30
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Abstract

Nuclear power plants have been operated in Korea since 1978, thus the high-level radioactive waste (HLW) produced from the plants has been accumulated accordingly. Hence, it is urgent to secure a final repository for HLW disposal, however, siting process should be preceded, which usually takes long time, as it requires broad and precise investigation. The investigation is generally carried out in stages, which consists of multidisciplinary approaches. In this study, the case studies mainly pertaining to rock mechanics were conducted. Rock mechanical aspects required in each stage and their applications were investigated and corresponding R&D researches were presented as well. At the same time, current research status in Korea was presented, followed by a brief future research plan with regard to the site investigation. The future research aims to produce fundamental information for siting process, and the compiled cases in this study will be utilized as references in the research.

우리나라는 1978년부터 원자력발전소를 운영해왔으며 그에 따른 고준위방사성폐기물 발생이 누적되고 있다. 이를 안전하게 처분하기 위한 영구 처분시설이 시급한 실정이나 처분 부지를 선정하는 과정에서 광범위하고 정밀한 부지조사가 요구되기 때문에 장기간에 걸친 조사가 선행되어야한다. 이러한 부지조사는 단계별로 진행되는 것이 일반적이며 이 과정에서 다학제적 평가가 이루어진다. 본 논문에서는 부지조사 과정에서 요구되는 암반공학적 요소를 중점으로 사례조사를 수행하였다. 단계별로 고려되는 암반공학적 평가요소와 그 적용 사례를 정리하였으며 이 과정에서 수행된 해외 연구 사례를 조사하였다. 동시에 국내 연구현황을 정리하였고 부지조사와 관련된 향후 연구 계획을 간략히 보고하였다. 향후 연구를 통해 부지조사 시 참고할 수 있는 기반자료를 생산하고자 하며 본 논문에서 수집된 사례 역시 활용할 예정이다.

Keywords

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