Relationship between fractures and flow paths in granitic rock at the Mizunami Underground Research Laboratory site

Hayano, Akira; Nakamata, Kiminori; Tsuruta, Tadahiko; Takeuchi, Shinji

Proceedings of 36th International Association of Hydrogeologists Congress 2008 (IAH 2008) (CD-ROM), 10 Pages, 2008/10

Internal structures, deformation and alteration characteristics of an impermeable fault; A Case study of the Toki Granite in the Mizunami Underground Research Laboratory

Nakamata, Kiminori; Tsuruta, Tadahiko; Amano, Kenji; Nishimoto, Shoji*; Yoshida, Hidekazu*

Nihon Oyo Chishitsu Gakkai Heisei-19-Nendo Kenkyu Happyokai Koen Rombunshu, p.207 - 208, 2007/10

no abstracts in English

Geological structures in upper part of granite in the Mizunami Underground Research Laboratory

Tagami, Masahiko; Nakamata, Kiminori*; Hayano, Akira; Kurihara, Arata; Amano, Kenji; Tsuruta, Tadahiko

no journal, , 

no abstracts in English

Alteration characteristics of an impermeable fault and surrounding rock mass; A Case study of the Toki granite in the Mizunami Underground Research Laboratory

Tsuruta, Tadahiko; Ochi, Minoru; Yuguchi, Takashi; Tagami, Masahiko; Kakamu, Kazuhiko; Yoshida, Hidekazu*; Nishimoto, Shoji*; Nishiyama, Tadao*; Nakamata, Kiminori*

no journal, , 

no abstracts in English

Counter-measure for the water inflow for the construction of the Mizunami Underground Research Laboratory; Overview of the pilot borehole investigations

Takeuchi, Shinji; Hayano, Akira; Ikeda, Koki; Mikake, Shinichiro; Hara, Masato; Yamamoto, Masaru; Tsuruta, Tadahiko; Nakamata, Kiminori; Takeuchi, Ryuji; Saegusa, Hiromitsu; et al.

no journal, , 

The results from the pilot borehole investigations conducted at FY2006 at Mizunami Underground Research Laboratory are presented. The investigations are carried out to obtain various information for the planning of water treatment facility, planning for the grouting and revision for the construction design by understanding the geological environment below the excavating area. From the result of the investigations, important section of the inflow water and hydrochemical composition which should be treated in the water treatment facility have been obtained. Required informations on the planning for the future construction of MIU are addressed.