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Tsuda, Hidenori; Walker, C.; Shinkai, Fumiaki*; Kishi, Hirokazu*; Yui, Mikazu
Journal of Nuclear Science and Technology, 49(11), p.1110 - 1113, 2012/11
Times Cited Count：4 Percentile：31.96(Nuclear Science & Technology)Fujita, Tomoo; Shinkai, Fumiaki*; Nobuto, Jun*
Journal of Energy and Power Engineering, 6(8), p.1191 - 1203, 2012/08
This study aims at validating applicability of the theoretical formula by Gustafson and Still to analysis of permeation behavior of Bingham fluid into a one-dimensional micro-fissure by comparing analysis results with laboratory tests data conducted using bentonite slurry as a Bingham fluid. The results showed that the calculation values by Gustafson and Stille model agreed well with values of laboratory penetration test.
Tsuji, Masakuni*; Nobuto, Jun*; Okihara, Mitsunobu*; Sugita, Yutaka; Fujita, Tomoo; Shinkai, Fumiaki
Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.93 - 94, 2010/09
no abstracts in English
Sugiyama, Hirokazu*; Nobuto, Jun*; Fukuoka, Naomi; Shinkai, Fumiaki; Shimada, Shunsuke*; Koyama, Tadao*; Kijima, Masashi*; Terashima, Rei*
Doboku Gakkai Heisei-22-Nendo Zenkoku Taikai Dai-65-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), p.87 - 88, 2010/09
no abstracts in English
Fukuoka, Naomi; Shinkai, Fumiaki; Miura, Norihiko*; Nobuto, Jun*; Yamada, Tsutomu*; Naito, Morimasa
JAEA-Data/Code 2010-005, 353 Pages, 2010/07
JAEA-Data-Code-2010-005-01.pdf:8.91MBJAEA-Data-Code-2010-005-02.pdf:46.47MB
High-level radioactive waste management in Japan is based on the multi-barrier concept, composed of the engineered barrier system and the surrounding geological formations. Although cementitious materials are commonly used for rock support, lining, and grouting, their pH plume are considered to have an adverse effect on long-term safety of a geological disposal system. In addition, during the emplacement of waste package with buffer material, it is required to limit amount of groundwater inflow into a disposal pit or tunnel to a certain level by grouting because the bentonite clay buffer is easy to swell in time by contact with the groundwater. Therefore, it is necessary to develop new grout materials with penetrability for smaller fractures. This report shows the most appropriate composition of new grout materials to be suitable for the in-situ experiment based on the result of indoor test.
Kobayashi, Shinji*; Nobuto, Jun*; Sugiyama, Hirokazu*; Kobayashi, Yasushi; Shinkai, Fumiaki
no journal, ,
no abstracts in English
Shinkai, Fumiaki; Sugiyama, Hirokazu*; Nobuto, Jun*
no journal, ,
no abstracts in English
Nobuto, Jun*; Okihara, Mitsunobu*; Kobayashi, Shinji*; Shinkai, Fumiaki
no journal, ,
no abstracts in English
Yamada, Tsutomu; Naito, Morimasa; Kobayashi, Yasushi; Shinkai, Fumiaki
no journal, ,
no abstracts in English
Izumi, Atsushi; Naito, Morimasa; Yamada, Tsutomu; Shinkai, Fumiaki
no journal, ,
no abstracts in English
