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Hatanaka, Koichiro; Shigeta, Naotaka; Fukushima, Tatsuo
Proceedings of 2008 International High-Level Radioactive Waste Management Conference (IHLRWM 2008) (CD-ROM), p.101 - 108, 2008/09
The surface-based investigation (Phase I) in the Horonobe URL project has been conducted from March, 2001 until the end of the year 2005 as shown in Figure 1. Throughout the Phase I investigation, the concepts of geosynthesis and iterative assessment of the stepwise investigations were introduced towards characterization of the geological environment in the area including Horonobe URL site and the applicability was confirmed. The achievement of the Phase I investigation was summarized in the year 2006 and the relevant progress reports were published in March, 2007. In this paper, the concepts based on the geosynthesis methodology and its iterative application throughout stepwise investigations applied in the Horonobe URL project are discussed and summarized.
Hatanaka, Koichiro; Morioka, Hiroshi*; Fukushima, Tatsuo
Proceedings of 2008 International High-Level Radioactive Waste Management Conference (IHLRWM 2008) (CD-ROM), p.250 - 257, 2008/09
In this paper, the procedure for planning design/construction of the underground facilities developed in Phase I of Horonobe URL project, and current status of the actual construction in Phase II based on the design and relevant engineering technology developed in Phase I are briefly described.
Ota, Kunio; Abe, Hironobu; Yamaguchi, Takehiro; Kunimaru, Takanori; Ishii, Eiichi; Kurikami, Hiroshi; Tomura, Goji; Shibano, Kazunori; Hama, Katsuhiro; Matsui, Hiroya; et al.
JAEA-Research 2007-044, 434 Pages, 2007/03
JAEA-Research-2007-044.pdf:54.58MBJAEA-Research-2007-044(errata).pdf:0.08MB
The Horonobe URL Project started in 2000. Research and development activities are planned over three phases, that will span a total duration of about 20 years: the 1st surface-based investigarion phase (6 years), the 2nd URL construction phase (8 years) and rhe 3rd operation phase (12 years). Geological, geophysical, geo-mechanical, hydrogeological, and hydro-geochemical investigations have been carried out during the surface-based investigation.
Ishii, Eiichi; Fukushima, Tatsuo
Oyo Chishitsu, 47(5), p.280 - 291, 2006/12
Because some fractures might be water conducting features in rocks, it is necessary to consider sufficiently the fractures, for development of a geological model. In this study, we have tried to understand geological characteristics and formative processes of faults in Neogene siliceous rocks, based on results of outcrop observation, boring-core observation, and borehole-wall observation, in order to develop an investigation technique for water conducting features. In addition, we have tried to estimate permeability of faults and to develop a geological conceptual model including water conducting features. The results of this study suggest the follow: Concerning faults without filling minerals and hydro-thermal alteration in Neogene siliceous rocks including fold structures, (1) in order to classify the faults, an attention of relation between fault direction and fold axis/bedding direction, of displacement sense, and of displacement is effective. (2) in order to understand the formative process of the faults, an observation of crosscutting relations of faults, an analysis of relationship between faulting and folding, and an inference of stress conditions of faulting by fault striation analysis are effective. (3) in order to estimate hydro-geological property, an observation of redox front along faults near the surface, and an analysis of fault density, of formative process of faults, and of relation between fault direction and stress axis are effective.
Seya, Masami; Hatanaka, Koichiro; Fukushima, Tatsuo
Sato Kogyo Gijutsu Kenkyushoho, (31), p.49 - 56, 2006/11
Although the atomic energy is utilized as effective energy source, treatment and disposal of high-level radioactive waste are important issues to be solved. In Japan, the high-level radioactive waste is planned to be disposed off in deep underground and R&D programs for the treatment and the disposal of the high-level radioactive waste are underway by Japan Atomic Energy Agency(JAEA) and other research institutes. The Horonobe Underground Research Laboratory Project is one of the research projects of JAEA to establish the scientific and technical basis in sedimentary rocks at Horonobe-cho, Hokkaido. In this report we introduce the outline and current status of the Horonobe Underground Reasearch Laboratory Project.
Seya, Masami; Morioka, Hiroshi; Fukushima, Tatsuo
Sato Kogyo Gijutsu Kenkyushoho, (31), p.57 - 62, 2006/11
Japan Atomic Energy Agency is constructing a deep underground research laboratory at Horonobe-cho, Hokkaido. In this report, the outline of the construction plan of the Horonobe Underground Research Laboratory, treatment of muck and groundwater produced by the construction as environmental point of view, and observational method and disaster control as security are introduced.
Yamazaki, Shinichi; Fukushima, Tatsuo; Aoki, Kazuhiro
Proceedings of 2nd International Meeting on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, p.59 - 60, 2005/03
Two off-site Underground Research Laboratory (URL) projects, which are mentioned in the
Yamazaki, Shinichi; Matsui, Hiroya; Hama, Katsuhiro; Morioka, Hiroshi; Hatanaka, Koichiro; Fukushima, Tatsuo; Seya, Masami
JNC TN5400 2004-005, 181 Pages, 2004/12
JNC-TN5400-2004-005.pdf:49.9MBJNC-TN5400-2004-005(errata).pdf:0.08MB
This report includes the records for the international workshop on Hornobe Underground Research Laboratory Project. Abstracts, Slides for Presentation, and so on.
Yamazaki, Shinichi; Matsui, Hiroya; Hama, Katsuhiro; Morioka, Hiroshi; Hatanaka, Koichiro; Fukushima, Tatsuo
JNC TN5400 2004-004, 41 Pages, 2004/10
JNC-TN5400-2004-004.pdf:4.66MB
Japan Nuclear Cycle Development Institute (JNC) is pursuing two underground research laboratory (URL) projects to conduct a systematic research on geological disposal of high level radioactive wastes. The Tono Geoscience Center (TGC) has been carrying out research and development in crystalline rocks at Mizunami in central Japan and the Horonobe Underground Research Center in sedimentary rocks at Horonobe in northern Japan. Both projects are nearing termination of the first phase of surface-based investigation and is about to move on to the next phase of actually constructing the facilities underground. To mark this transition of phases, an international conference is organized to promote domestic and international recognition for the significance of constructing the URLs by disseminating research findings to a broad range of researchers and specialists from within and outside Japan as well as to the local community.
JNC, 1)*; Niizato, Tadafumi; Aoki, Kazuhiro; ;
International workshop on "Active Monitoring in the Solid Earth Geophysics", 0 Pages, 2004/07
Japan Nuclear Cycle Development Institute (JNC) is developing a remote monitoring system using seismic and electromagnetic ACROSS (Accurately Controlled Routinely Operated Signal System) in the Horonobe Underground Research Laboratory (URL). The Horonobe URL project is devoted to the technological development for a safe geological disposal of high level radioactive wastes over a 20-year period from March 2001 in Horonobe-cho in northern Hokkaido, Japan. The purpose of installing a remote monitoring system is to monitor changes in the geological environment before, during and after the construction of an URL facility. The source and receiver system of electromagnetic ACROSS and the receivers of a seismic ACROSS will be installed in the fiscal year 2004, while the source of the seismic ACROSS will be transported from Tono Geoscience Center in 2005.
Tsukui, Rota; Niizato, Tadafumi; Aoki, Kazuhiro; Fukushima, Tatsuo
Proceedings of 1st International Workshop on Active Monitoring in the Solid Earth Geophysics (IWAM 2004), 0 Pages, 2004/07
Japan Nuclear Cycle Development Institute (JNC) is developing a remote monitoring system using seismic and electromagnetic ACROSS (Accurately Controlled Routinely Operated Signal System) in the Horonobe Underground Research Laboratory (URL). Horonobe URL is devoting to the technology development for the safe geological disposal of high level radioactive wastes over 20 years. The project has been operating since March 2001 in Horonobe-cho, northern Hokkaido, Japan. The target of a remote monitoring system is to monitor the change of geological environment before, during and after the construction of the URL underground facility. Receiver system of seismic ACROSS and source and receiver system of electromagnetic ACROSS will be installed in 2004 fiscal year, while source of seismic ACROSS will be transported from Tono Geoscience Center in 2005.
; Saito, Hiroshi
JNC TJ7410 2001-005, 122 Pages, 1988/03
JNC-TJ7410-2001-005.pdf:4.11MB
no abstracts in English
Kunimaru, Takanori; Fukushima, Tatsuo; Takeda, Seietsu
no journal, ,
no abstracts in English
Kunimaru, Takanori; Ota, Kunio; Abe, Hironobu; Yamaguchi, Takehiro; Ishii, Eiichi; Kurikami, Hiroshi; Tomura, Goji; Shibano, Kazunori; Hama, Katsuhiro; Matsui, Hiroya; et al.
no journal, ,
The Horonobe Underground Research Laboratory (URL) Project is being pursued by the Japan Atomic Energy Agency (JAEA) to enhance the reliability of relevant disposal technologies through investigations of the deep geological environment within the host sedimentary formations at Horonobe, northern Hokkaido. The project consists of two major research areas, "Geoscientific Research" and "R&D on Geological Disposal", and proceeds in three overlapping phases, "Phase I: Surface-based investigation", "Phase II: Construction" and "Phase III: Operation", over a period of 20 years. The present report summarises the results of the Phase I geoscientific research carried out from March 2001 to March 2005. Integration of work from different disciplines into a "geosynthesis" ensures that the Phase I goals have been successfully achieved and identifies key issues that need to be addressed in the Phase II/III investigations.
Sanada, Hiroyuki; Hanakawa, Toshiyuki; Ota, Kunio; Abe, Hironobu; Yamaguchi, Takehiro; Kunimaru, Takanori; Ishii, Eiichi; Kurikami, Hiroshi; Tomura, Goji; Shibano, Kazunori; et al.
no journal, ,
no abstracts in English
