Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) (방사성폐기물학회지)

Korean Radioactive Waste Society (한국방사성폐기물학회)
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Synthetic Study on the Geological and Hydrogeological Model around KURT

KURT 주변 지역의 지질모델-수리지질모델 통합 연구

  • Received : 2010.08.25
  • Accepted : 2010.10.15
  • Published : 2011.03.30
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Abstract

To characterize the site specific properties of a study area for high-level radioactive waste disposal research in KAERI, the several geological investigations such as surface geological surveys and borehole drillings were carried out since 1997. Especially, KURT (KAERI Underground Research Tunnel) was constructed to understand the further study of geological environments in 2006. As a result, the first geological model of a study area was constructed by using the results of geological investigation. The objective of this research is to construct a hydrogeological model around KURT area on the basis of the geological model. Hydrogeological data which were obtained from in-situ hydraulic tests in the 9 boreholes were estimated to accomplish the objective. And, the hydrogeological properties of the 4 geological elements in the geological model, which were the subsurface weathering zone, the log angle fracture zone, the fracture zones and the bedrock were suggested. The hydrogeological model suggested in this study will be used as input parameters to carry out the groundwater flow modeling as a next step of the site characterization around KURT area.

한국원자력연구원의 연구지역에서 고준위방사성폐기물처분을 위한 부지특성평가 기술 구축을 위해 지질특성조사가 1997년부터 지표기반 조사, 시추공 조사를 포함하여 수행되었다. 2006년에는 지하처분연구터널 (KURT, KAERI Underground Research Tunnel)을 준공하여 연구지역에 대한 심부지질환경 규명을 위해 노력하고 있다. 본 연구는 한국원자력연구원내 건설된 지하처분연구시설 주변 지역을 연구대상 지역으로 하여 지질모델에 대한 수리지질모델의 통합 구축을 목적으로 한다. 본 연구를 위해 연구지역에서 굴착된 9개의 시추공에 대한 현장 수리시험 자료를 이용하였으며, 지질모델에서 도출한 풍화대, 상부저경사단열대, 심부 영역에 존재하는 결정론적 단열대에 대한 수라지질특성을 분석하였다. 본 연구 결과 제시된 수리지질모델은 향후 지하수 유동모델링에 이용될 것이다.

Keywords

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