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Groundwater Flow Modeling in a Block-Scale Fractured Rocks considering the Fractured Zones  

Ko, Nak-Youl (Korea Atomic Energy Research Institute)
Ji, Sung-Hoon (Korea Atomic Energy Research Institute)
Koh, Yong-Kwon (Korea Atomic Energy Research Institute)
Choi, Jon-Won (Korea Atomic Energy Research Institute)
Publication Information
Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) / v.8, no.2, 2010 , pp. 159-166 More about this Journal
Abstract
The block-scale groundwater flow system at Olkiluoto site in Finland was simulated. The heterogeneous and anisotropic hydraulic conductivity field for the domain was constructed from the discrete fracture network, which considered only the fractured zones identified in the deep boreholes installed in the study site. The groundwater flow model was calibrated by adjusting the recharge rate and the transmissivities of the fractured zones to fit the calculated hydraulic heads and into- and out-flow rates in the observation intervals of the boreholes with the observed ones. In the calibrated model, the calculated flow rates at some intervals were not in accordance with the observed ones although the calculated hydraulic heads fit well with the observed ones, which revealed that the number of the conduits for groundwater flow is insufficient in the conceptual model for groundwater flow modeling. Therefore, it was recommended that the potential local conduits such as background fractures should be added to the present conceptual model.
Keywords
block-scale groundwater flow modeling; fractured zone; hydraulic conductivity field; conceptual model;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 지성훈, 박경우, 김경수, 김천수, "중.저준위 방사성폐기물 처분 부지 내 배경 단열의 통계적 특성 분석," 방사성폐기물학회지, 6(4), pp. 257-263(2008).   과학기술학회마을
2 고낙열, 지성훈, 고용권, "심부 관측공의 영향을 고려한 단열 암반에서의 지하수 유동 모의," 2009년 한국방사성폐기물학회 춘계학술대회 논문요약집, pp. 233-234, 2009.6.18-19, 경주교육문화회관.
3 M. Oda, "Permeability tensor for discontinuous rock masses," Geotechnique, 35(4), pp. 483-495(1985).   DOI   ScienceOn
4 H. Diersch, "Discrete feature modeling of flow, mass and heat transport processes by using FEFLOW,". in: FEFLOW: Finite Element Subsurface Flow and Transport Simulation System, White Papers Vol. 1, WASY GmbH, ed., pp. 149-196, WASY GmbH, Berlin, Germany(2005).
5 H. Diersch, FEFLOW: Finite Element Subsurface Flow and Transport Simulation System, Reference Manual. p. 292, WASY GmbH Institute for Water Resources Planning and Systems Research, Berlin, Germany (2005).
6 조원진, 권상기, 박정화, 최종원, "한국원자력연구원 지하처분연구시설," 방사성폐기물학회지, 5(3), pp. 239-255(2007).   과학기술학회마을
7 박경우, 지성훈, 김천수, 김경수, 김지연, "중.저준위 방사성폐기물 처분 부지의 지하수 유동에 대한 수치 모사: 1. 지하수 모델링," 방사성폐기물학회지, 6(4), pp. 265-282(2008).   과학기술학회마을
8 지성훈, 고용권, "방폐물 처분장 안전성 평가를 위한 지하수 유동 모델링 연구 현황", 지질학회지, 46(2), pp. 181-195 (2010).
9 P. Anttila, H. Ahokas, K. Front, E. Heikkinen, H. Hinkkanen, E. Johansson, S. Paulamaki, R. Riekkola, J. Saari, P. Saksa, M. Snellman, L. Wikstrom and A. Ohberg. Final disposal of spent nuclear fuel in Finnish bedrock - Olkiluoto site report, Posiva Report, POSIVA 99-10(1999).
10 J. Andersson, H. Ahokas, J. Hudson, L. Koskinen, A. Luukkonen, J. Lofman, V. Keto, P. Pitkanen, J. Mattila, A. Ikonen and M. Yla-Mella. Olkiluoto site description 2006, Posiva Report, POSIVA 2007-03 (2007).
11 Posiva Oy, Olkiluoto Site Description 2008, Posiva Report, POSIVA 2009-01(2009).
12 H. Ahokas, T. Vaittinen, E. Tammisto and J. Nummela. Modelling of hydro-zones for the layout planning and numerical flow model in 2006. Posiva Oy, Working Report 2007-01 (2007).