Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Seno, Yasuhiro; Hirano, Toru
no journal, ,
no abstracts in English
Oyama, Takuya; Saegusa, Hiromitsu; Onoe, Hironori; Takeuchi, Ryuji
no journal, ,
The poster reports the results of hydrogeological studies on the Surface-based Investigation (Phase I) at the Mizunami Underground Laboratory Project. The hydrogeological studies have been carried out in order to understand (1) groundwater flow characteristics, (2) dilution of nuclides, (3) volume of inflow into underground tunnels, and (4) impact induced by construction of underground tunnels on water table and hydraulic pressure. The poster compiles the main results to be understood these items, and technical findings and know-how which can serve as foundation to disposal business.
Niwa, Masakazu; Shimada, Koji; Kurosawa, Hideki
no journal, ,
no abstracts in English
Takeuchi, Ryuji; Saegusa, Hiromitsu; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Mizuno, Takashi; Seno, Yasuhiro; Uchida, Masahiro
no journal, ,
no abstracts in English
Ogata, Nobuhisa
no journal, ,
no abstracts in English
Yasue, Kenichi; Tajikara, Masayoshi
no journal, ,
no abstracts in English
Mizuno, Takashi; Hama, Katsuhiro; Yoshida, Haruo; Sai, Masataka; Amano, Yuki; Hagiwara, Hiroki
no journal, ,
no abstracts in English
Ishimaru, Tsuneari
no journal, ,
no abstracts in English
Negi, Tateyuki; Umeda, Koji
no journal, ,
MT survey has been applied to various fields in recent years. It is recognized as an effective method for identifying deep resistivity structures in the crust. However, it is difficult to acquire high quality data in highly noisy environments because natural electromagnetic fields are used in the MT survey. To apply MT survey in such environments, it is important to develop a robust stacking method to improve the quality of the MT spectrum data. At the last SEGJ conference held in Spring 2007, we have reported a new effective and robust stacking method based on MT reliability index (Negi et al., 2005). In this study, we report the development of the robust smoothing method for MT data to be with the robust stacking method for EDI files. Applied to poor quality data, it improved the data to interpretable data in a short time. Therefore, it is expected to be effective and practical method for improving poor quality data.
Saito, Tatsuo; Suzuki, Mototaka
no journal, ,
no abstracts in English
Matsuoka, Toshiyuki; Amano, Kenji; Tsuruta, Tadahiko; Abumi, Kensho; Hodotsuka, Yasuyuki
no journal, ,
no abstracts in English
Kuroda, Hidetaka; Kuji, Masayoshi; Mikake, Shinichiro; Matsui, Hiroya
no journal, ,
no abstracts in English
Kuji, Masayoshi; Mikake, Shinichiro; Kuroda, Hidetaka; Matsui, Hiroya
no journal, ,
no abstracts in English
Kuji, Masayoshi; Mikake, Shinichiro; Kuroda, Hidetaka; Matsui, Hiroya
no journal, ,
no abstracts in English
Hasegawa, Ken; Kunitomo, Takahiro; Nakajima, Takahiro; Kumazawa, Mineo
no journal, ,
no abstracts in English
Semba, Takeshi; Saegusa, Hiromitsu; Hama, Katsuhiro; Tsuruta, Tadahiko; Amano, Kenji; Takeuchi, Ryuji; Seno, Yasuhiro; Uchida, Masahiro
no journal, ,
no abstracts in English
Semba, Takeshi
no journal, ,
no abstracts in English
Mikake, Shinichiro
no journal, ,
Reducing method against water inflow during the shafts sinking in the Mizunami Underground Research Laboratory.
Hara, Masato; Minamide, Masashi; Ikeda, Koki; Yamamoto, Masaru; Matsui, Hiroya; Kuji, Masayoshi
no journal, ,
As water inflow measure of the ventilation shaft, the articulated section and the pre- grouting which deals with the boring adit were executed, the water inflow depression effect was verified.
Iyatomi, Yosuke; Ogata, Nobuhisa; Sugihara, Kozo; Seko, Noriaki; Hoshina, Hiroyuki; Okada, Kenji*; Tamada, Masao
no journal, ,
no abstracts in English