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In, Teiji*; Shima, Shigeki*; Nakayama, Tomoharu*; Ishikawa, Yoichi*; Togawa, Orihiko; Kobayashi, Takuya; Kawamura, Hideyuki
Gekkan Kaiyo, 37(9), p.674 - 680, 2005/09
no abstracts in English
Ogawa, Hiromichi; Nagao, Seiya; Yamaguchi, Tetsuji; Mukai, Masayuki; Munakata, Masahiro; Sakamoto, Yoshiaki; Nakayama, Shinichi; Takeda, Seiji; Kimura, Hideo; Kumata, Masahiro; et al.
JAERI-Research 2000-052, 101 Pages, 2001/01
JAERI-Research-2000-052.pdf:8.27MB
no abstracts in English
Uchida, Shigeo*; Yasuda, Hiroshi*; Mahara, Yasunori*; ; Takahashi, Tomoyuki; Kimura, Hideo; Matsuzuru, Hideo
JAERI-Review 95-009, 64 Pages, 1995/06
JAERI-Review-95-009.pdf:2.33MB
no abstracts in English
Takebe, Shinichi; Mukai, Masayuki; Komiya, Tomokazu; Kamiyama, Hideo
JAERI-M 93-034, 15 Pages, 1993/02
no abstracts in English
Takebe, Shinichi; Mukai, Masayuki; Komiya, Tomokazu; Kamiyama, Hideo
JAERI-M 92-205, 19 Pages, 1993/01
no abstracts in English
Tachi, Yukio; Yotsuji, Kenji*; Fukatsu, Yuta; Sugiura, Yuki; Okubo, Takahiro*
no journal, ,
Understanding the radionuclide migration in clay minerals contained in the buffer material bentonite and rocks is important for the safety assessment of geological disposal of radioactive waste. The pore structures and the electrostatic interactions at the surface, formed by the clay mineral with a layered structure, are key components for developing the radionuclide migration model in clay minerals. In this study, in order to evaluate the influence of alteration from Na- to Ca-montmorillonite on radionuclide migration, the diffusion and sorption model was developed by considering the effects of both pore structures and electrostatic interactions in the compacted montmorillonite.
Koike, Ayaka*; Ishida, Keisuke*; Mihara, Morihiro
no journal, ,
To increase the confidence of the safety of the deep geological repository (DGR), NUMO has been developing a realistic radionuclide migration model for TRU (Trans-uranium) wastes produced from reprocessing process of spent fuel. In generic safety case "The NUMO Pre-siting SDM-based Safety Case"(NUMO-SC), cementitious materials inside the structural framework in the disposal tunnel were conservatively simplified due to uncertainty of its state evolution. In this study, NUMO increased confidence in reactive transport simulation used in NUMO-SC to assess the evolution and particle tracking simulation with a 3D model which precisely represents the design inside the structural framework.
