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Analysis of radionuclide migration with consideration of spatial and temporal change of migration parameters due to uplift and denudation

Published online by Cambridge University Press:  27 April 2015

Taro Shimada ,
Seiji Takeda ,
Masayuki Mukai ,
Masahiro Munakata  and
Tadao Tanaka
Taro Shimada
Affiliation:
Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai-mura, Ibaraki, 3191195, JAPAN
Seiji Takeda
Affiliation:
Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai-mura, Ibaraki, 3191195, JAPAN
Masayuki Mukai
Affiliation:
Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai-mura, Ibaraki, 3191195, JAPAN
Masahiro Munakata
Affiliation:
Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai-mura, Ibaraki, 3191195, JAPAN
Tadao Tanaka
Affiliation:
Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai-mura, Ibaraki, 3191195, JAPAN
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Abstract

Integrated safety assessment methodology that analyzes radionuclide migration reflecting the spatial and temporal changes of disposal systems was developed for a geological disposal site with uplift and denudation, and then some case analyses for an assumed site were carried out. The combination of uniform uplift and denudation has the largest effect on the radionuclide migration because the ground water flow velocity increases with decreasing depth from the ground surface. In the case without denudation, tilted uplift has more effect than uniform uplift because flow velocity in tilted uplift increases with increasing hydraulic gradient. The long-term change of the geological structures including the uplift and denudation, the hydraulic conditions, and the recharge and outlet of the ground water around a candidate site should be carefully investigated to determine the appropriate the place, depth and layout of the repository.

Keywords

waste managementnuclear materialsSe
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1744: Symposium EE – Scientific Basis for Nuclear Waste Management XXXVIII , 2015 , pp. 229 - 234
Copyright
Copyright © Materials Research Society 2015 

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References

REFERENCES

Niizato, T., Yasue, K., A study on the long-term stability of the geological environments in and around the Horonobe area. J Nucl Fuel Cycle and Env, 11(2), 125–137, March (2005). [in Japanese]CrossRefGoogle Scholar
Kimura, H., The MIG2DF Computer Code User's Manual, JAERI-M 92–115, (1992).Google Scholar
Takeda, S. et al. ., Assessment on Long-term Safety for Geological Disposal of High Level Radioactive Waste, JAEA-Research 2009-034, (2009). [in Japanese]Google Scholar
JNC., 2nd Progress Report on Research and Development for the Geological Disposal of HLW in Japan, JNC Technical Report TN1410 2000-001, Japan Nuclear Cycle Development Institute, Tokai-mura Japan, (2000). [in Japanese]Google Scholar
Maeda, T. et al. ., Corrosion Behavior of Simulated HLW Glass in the Presence of Magnesium Ion, International Journal of Corrosion, Volume 2011 (2011).CrossRefGoogle Scholar