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2023 Vol.60, Issue 5S Preview Page

Technical Report

Geophysical Survey Applications in Underground Research Laboratories and Deep Disposal Sites of Spent Nuclear Fuel

사용후핵연료 심층처분장 및 지하연구시설에서의 물리탐사 적용

Hanna Jang1
,
Juyeon Jeong1
,
In Seok Joung1
,
Ahyun Cho1
,
Huieun Yu1
,
Hyung-Mok Kim12
,
Myung Jin Nam12*
장 한나1
,
정 주연1
,
정 인석1
,
조 아현1
,
유 희은1
,
김 형목12
,
남 명진12*
1Department of Energy and Mineral Resources Engineering, Sejong University, South Korea
2Department of Energy Resources and Geosystems Engineering, Sejong University, South Korea
1세종대학교 에너지자원공학과
2세종대학교 지구자원시스템공학과
*Corresponding Author
31 October 2023. pp. 395-413
PDF XML Citation
Abstract

To safely dispose high-level radioactive wastes such as spent nuclear fuel in a repository hundreds of meters deep below the earth’s surface, it is critical to verify the disposal process through onsite experiments in an underground research laboratory (URL). From site selection to operational stages, potential pathways for radioactive nuclide leakage into the ecosystem need to be completely delineated considering factors such as fractures and groundwater flow within the bedrock. For this purpose, geophysical survey techniques, which are non-invasive methods, have been actively researched worldwide. Utilization of various geophysical methods can evaluate geological and hydrogeological settings, thermal effects, engineering barriers etc. Analysis on previous geophysical survey cases conducted for URLs as well as repositories showed that geophysical surveys are sufficiently helpful and effective in assessing and managing deep geological repositories. The analysis can be used as fundamental information for the implementation of domestic disposal facilities.

Keywords
high-level radioactive waste
deep disposal
underground research laboratory
geophysical survey

사용후핵연료 등의 고준위 방사성 폐기물을 안전하게 처리하기 위한, 지하 수백 m 암반내에 격리하는 심층처분장을 안정적으로 운영하기 위해서는 지하연구시설에서 현장 실험을 수행하여 검증하는 과정이 필요하다. 특히, 부지 선정 단계부터 운영 단계에 걸쳐, 심층처분장에서 방사성 핵종이 생태계로 누출되는 주요 경로인 균열 및 지하수 흐름을 파악할 수 있어야 한다. 이를 위해, 지하 매질의 물성을 파악할 수 있는 다양한 물리탐사 기법들을 활용함으로써 심층처분장 및 지하연구시설에서 구조지질학적, 수리지질학적, 열응력 영향, 공학적 방벽 등을 평가할 수 있다. 국내외 지하연구시설에서 수행된 물리탐사 적용 연구의 다양한 사례들을 분석한 결과, 물리탐사는 심층처분장을 안정적으로 관리하고 평가하는 데 있어 충분히 유용하고 효과적임을 알 수 있었다.

키워드
고준위 방사성 폐기물
심층처분장
지하연구시설
지구물리탐사
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Information
  • Publisher :The Korean Society of Mineral and Energy Resources Engineers
  • Publisher(Ko) :한국자원공학회
  • Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
  • Journal Title(Ko) :한국자원공학회지
  • Volume : 60
  • No :5
  • Pages :395-413
  • Received Date : 2023-08-22
  • Revised Date : 2023-10-12
  • Accepted Date : 2023-10-26
  • DOI :https://doi.org/10.32390/ksmer.2023.60.5.395
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