All Issue

2021 Vol.31, Issue 2 Preview Page

Case Study

Introduction on Site-Descriptive Modeling for Site Selection of Deep Geological Disposal in Sweden

심층처분 부지선정을 위한 스웨덴 부지모사 모델링 적용 사례 소개

Hyunwoo Kim1*
,
Chan-Hee Park1
,
Eui-Seob Park1
,
Yong-Bok Jung2
김 현우1*
,
박 찬희1
,
박 의섭1
,
정 용복2
1Principal Researcher, Deep Subsurface Research Center, Geologic Environment Division, Korea Institute of Geosciences and Mineral Resources
2Head, Deep Subsurface Research Center, Geologic Environment Division, Korea Institute of Geosciences and Mineral Resources
1한국지질자원연구원 지질환경연구본부 심지층연구센터 책임연구원
2한국지질자원연구원 지질환경연구본부 심지층연구센터 센터장
*Corresponding Author
30 April 2021. pp. 111-124
PDF XML Citation
Abstract

SKB, the Swedish Nuclear Fuel and Waste Management Company, has a leading position in developing deep geological disposal technologies and it has introduced the concept of three-dimensional site-descriptive modeling (SDM). SDM provides a holistic view and integrated model of investigated sites in site-selection stage. The model is based on the geoscientific disciplines including geology, rock mechanics and thermal properties, hydrogeology, hydrogeochemistry, bedrock transport properties, and surface ecology. The site-descriptive model is connected to the quality-assured databases containing site investigation data, uncertainties in parameters describing material properties, suggested methods, testing standards, etc. Therefore, it can provide data relevant to repository layout and assessment of long-term safety. In this case study, we summarized the SKB’s history of site investigation and site-descriptive modeling, and described workflow and software tools for SDM. We have suggested some items, such as integrated development environment, pilot project, and digital twins, based on experts' reviews on the SKB's SDM-site Report or Safety Assessment Report.

Keywords
Site-descriptive modeling
Deep geological disposal
Case study
SKB

심층처분 연구에서 선도적 위치에 있는 스웨덴의 SKB는 후보부지 선정 과정에서 개별적으로 수집되는 현지조사 자료와 모델링 결과를 근거로 하여 다양한 측면에서 처분장의 안전성을 평가할 수 있고, 정보들을 통합하여 전체적으로 조망할 수 있는 방법으로 부지모사 모델링을 도입하였다. 부지모사 모델은 해당부지의 지질정보를 파악할 수 있도록 3차원 모델로 가시화하고 수치해석 코드 등에서 재현할 수 있게 형상 정보를 제공한다. 부지모사 모델은 모델 제작에 필요한 지반조사 결과와 자료의 불확실성, 조사기준 및 방법 등 각종 데이터베이스와도 연계되어 있어 처분장의 안전성 평가나 시설물 설계 시 필요한 자료를 제공할 수 있다. 본 사례연구에서는 SKB의 부지모사 모델 제작 이력, 모델링 기법의 특징 및 소프트웨어 등 일반사항을 요약하였으며, 전문가 집단이 부지모사 모델에 대해 제시한 검토 의견을 분석하여 부지모사 모델이 필수적으로 갖춰야 할 요건과 통합작업환경, 파일럿 프로젝트 운영, 디지털트윈으로의 확대 등 향후 기술 개발 과정에서 고려할 만한 사항들을 도출하였다.

키워드
심층처분
부지모사 모델링
사례 연구
SKB
References
1
Andersson, J., 2020, Science underpinning the safety case of deep geological repositories - challenges in the past and in the future and how to maintain knowledge and competence during operation, EPJ Nuclear Sciences & Technologies, Vol. 6, 24. 10.1051/epjn/2019037
2
Andersson, J., Skagius, K., Winberg, A., Lindborg, T. and A. Strom, 2013, Site-descriptive modelling for a final repository for spent nuclear fuel in Sweden, Environmental Earth Science, Vol. 69, pp. 1045-1060. 10.1007/s12665-013-2226-1
3
Bae, D.S., Koh, Y.K., Lee, S.J., Kim, H. and B.I. Choi, 2013, Preliminary Review on Function, Needs and Approach of Underground Research Laboratory for Deep Geological Disposal of Spent Nuclear Fuel in Korea, Journal of the Korean Radioactive Waste Society, Vol. 11(2), pp. 157-178. 10.7733/jkrws.2013.11.2.157
4
BGS, 2011, Interpretation and Modelling: Geology, to support the development of an Integrated Site Descriptive Model MINERALS and WASTE Programme Open Report OR/11/057.
5
Driessen, V., 2010, A successful Git branching model, https://nvie.com/posts/a-successful-git-branching-model.
6
IAEA, 1994, Siting of Geological Disposal Facilities: A Safety Guide, Safety Series No 111-G-4.1, STI/PUB/952.
7
KISTEP, 2020, Feasibility study on R&D program for spent nuclear fuel storage and disposal.
8
NSSC, 2017, Korean Sixth National Report under the Joint Convention on the Safety and Security of Spent Fuel Management and on the Safety of Radioactive Waste Management.
9
Park, K.W., Kim, K.S., Koh, Y.K., Jo, Y. and S.H. Ji, 2017, Review of Site Characterization Methodology for Deep Geological Disposal of Radioactive Waste, Journal of Nuclear Fuel Cycle and Waste Technology, Vol. 15(3), pp. 239-256. 10.7733/jnfcwt.2017.15.3.239
10
SKB, 2003, Site descriptive modelling-strategy for integrated evaluation (R-03-05).
11
SKB, 2008, Site description of Forsmark at completion of the site investigation phase, SDM Site Forsmark (R-08-05).
12
SKB, 2009, Site description of Laxemar at completion of the site investigation phase, SDM Site Laxemar (TR-09-01).
13
SKB, 2015, Rock Visualization System-Technical description (RVS version 6) (R-15-19).
14
SSM, 2010, INSITE summary report.
15
SSM, 2012, Initial Review Phase for SKB's safety assessment SR-Site (Technical note 2012:54).
16
Stigsson, M., 2019, Structural uncertainties of rock fractures and their effects on flow and tracer transport, Doctoral thesis, KTH.
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 : 31
  • No :2
  • Pages :111-124
  • Received Date : 2021-02-22
  • Revised Date : 2021-03-11
  • Accepted Date : 2021-03-30
  • DOI :https://doi.org/10.7474/TUS.2021.31.2.111
Journal Informaiton Tunnel and Underground Space Tunnel and Underground Space
Online Submission
Archives
: Vol.27, 2017 ~
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close