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Watanabe, Masatoshi; Maeda, Toshikatsu; Takeda, Seiji
no journal, ,
no abstracts in English
Maeda, Toshikatsu; Watanabe, Masatoshi; Takeda, Seiji
no journal, ,
no abstracts in English
Fuchiwaki, Hirotaka; Munakata, Masahiro; Kimura, Hideo; Imai, Hisashi*; Shiozaki, Isao*; Yamashita, Ryo*
no journal, ,
It is thought that in an external factor that influences the underground flow, there is a climatic variation repeated at the cycle of the order of 100,000 years, the following phenomena are caused by this climatic variation, and it influences the underground flow. It is thought that the following phenomena are caused by this climatic variation, and it influences the underground flow. (1) Development and disappearance of glacier, (2) Change in precipitation, (3) Decrease in amount of training because of development of frozen soil, (4) Sea-level rhythms, (5) Upheaval and erosion by gaining the weight to the earth's crust according to development of river and disappearance, (6) Dilution of seawater according to glacier disappearance, etc. The analytical result and the evaluation are announced.
Inoue, Yoshihisa; Takeda, Seiji; Kimura, Hideo
no journal, ,
no abstracts in English
Sakai, Ryutaro; Munakata, Masahiro; Kimura, Hideo; Ichikawa, Yasuo*; Nakamura, Masaru*; Tomimori, Satoshi*
no journal, ,
no abstracts in English
Osawa, Hideaki; Semba, Takeshi; Makino, Hitoshi; Hioki, Kazumasa; Umeki, Hiroyuki
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The abstract presents the summary of prototype on the knowledge management system of geological disposal technology, opened on March, 2010.
Nishimura, Yuki; Takeda, Seiji; Kimura, Hideo; Munakata, Masahiro
no journal, ,
no abstracts in English
Matsui, Hiroya; Mikake, Shinichiro; Asai, Hideaki; Ishii, Yoji; Horiuchi, Yasuharu; Kumada, Koji
no journal, ,
The Mizunami Underground Research Laboratory (MIU) of the Japan Atomic Energy Agency is a major site for geoscientific research to advance the scientific and technological basis for geological disposal of high-level radioactive waste in crystalline rock. Studies on relevant engineering technologies in the MIU consist of research on design and construction technology for very deep underground applications, and engineering technology as a basis of geological disposal. In the Second Phase of the MIU project, engineering studies have focused on research into design and construction technologies for deep underground. The main subjects in the study of very deep underground structures consist of the following: Demonstration of the design methodology, Demonstration of existing and supplementary excavation methods, Demonstration of countermeasures during excavation and Demonstration of safe construction. This poster show the main topics and results of the study until FY2009.
Uryu, Kojiro; Hanamuro, Takahiro; Yasue, Kenichi; Asamori, Koichi; Kokubu, Yoko; Ishimaru, Tsuneari; Umeda, Koji
no journal, ,
no abstracts in English
Matsuzaki, Tatsuji; Iwatsuki, Teruki; Nakayasu, Akio; Takeuchi, Shinji; Semba, Takeshi
no journal, ,
no abstracts in English
Onoe, Hironori; Saegusa, Hiromitsu; Takeuchi, Ryuji; Mizuno, Takashi
no journal, ,
In this paper, the procedures of model validation were introduced based on investigation, analysis and assessment of hydrogeology and hydrochemical in Phase 2 of MIU project. And, this report summarizes geosynthesis procedures of geological environment model developed in Phase 1.
Nakayasu, Akio; Doke, Ryosuke; Yasue, Kenichi; Niizato, Tadafumi; Umeda, Koji; Osawa, Hideaki
no journal, ,
no abstracts in English
Kondo, Naoki; Makino, Hitoshi; Umeki, Hiroyuki; Ishihara, Yoshinao*
no journal, ,
This presentation shows development of analysis tools that is able to assess quantitative distinction of waste characteristic from nuclear fuel cycle condition.
Hirano, Fumio; Inagaki, Manabu
no journal, ,
no abstracts in English
Semba, Takeshi; Osawa, Hideaki; Iwatsuki, Teruki; Hama, Katsuhiro; Takeuchi, Shinji; Sawada, Atsushi; Umeki, Hiroyuki
no journal, ,
As site investigation proceeds and information obtained on geological environments increases, the characterization plan has to be iteratively reviewed and modified to reflect improved understanding. Thus JAEA teams are developing a system for transferring the know-how and decision-making process, based on the experiences from JAEA's URL program, which are needed for the future site investigations.
Saegusa, Hiromitsu; Matsuoka, Toshiyuki; Maekawa, Keisuke; Amano, Kenji; Takeuchi, Shinji; Semba, Takeshi
no journal, ,
In this study, the work-flows of (1) the setting of area for modeling of geological environment, (2) geological modeling and (3) groundwater flow modeling, which are to be used for planning of site characterization, have been summarized based on the technical know-how accumulating from Mizunami Underground Research Laboratory Project and Horonobe Underground Research Laboratory Project. The decision-making process on the modeling has been also summarized, and expert systems for the modeling have been developed.
Ikeda, Makoto; Munakata, Masahiro; Kimura, Hideo; Ikeda, Norio*; Matsuba, Hisashi*; Nomura, Yoshinori*
no journal, ,
no abstracts in English
Tokuyasu, Shingo; Tsuruta, Tadahiko; Matsuoka, Toshiyuki; Tagami, Masahiko; Kurihara, Arata
no journal, ,
no abstracts in English
Osawa, Hideaki; Kunimaru, Takanori; Ota, Kunio; Russell, A.*
no journal, ,
JAEA has developed the expert system of "Information Synthesis and Interpretation System (ISIS)". In this study, know-how and judgements were pigeonholed based on the knowledge which was developed form borehole drilling investigations for the Horonobe and Mizunami URL projects. Also, this quality management system (QMS) applies to the hydrochemical dataset and the problems of the QMS was picked out.
Osawa, Hideaki; Takeuchi, Shinji; Kunimaru, Takanori; Ota, Kunio; Frieg, B.*
no journal, ,
Hydraulic packer test (HT) has been carried out in the deep borehole investigations in the URL programs. Obtained results (transmissivity and flow model etc.) are used for the groundwater modeling/simulations etc. Therefore, quality of HT data and their analysis are crucial for ensuring reliability of the modeling/simulation results. Thus quality management system for the HT from data acquisition to data analysis has been established. The established system has been applied to the borehole investigations in the URL program and confirmed the appropriateness.