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Ota, Kunio; Amano, Kenji; Niizato, Tadafumi; Alexander, W. R.*; Yamanaka, Yoshiaki*
Proceedings of 13th International Conference on Environmental Remediation and Radioactive Waste Management (ICEM 2010) (CD-ROM), p.123 - 132, 2010/10
The assurance of the long-term stability of the geological environment is 
for deep geological disposal. In Japan, since uplift/subsidence and climatic and sea-level changes would result in a significant change to hydraulic and hydrochemical conditions at coastal sites, it is of importance to establish comprehensive techniques for characterising the overall evolution of coastal sites over geological time. To this end, palaeohydrogeological study is ongoing in the coastal area around Horonobe in northern Hokkaido. A "Geosynthesis Data Flow Diagram" defining a methodology for characterising the palaeohydrogeological evolution of the site has been formulated and, based on the geosynthesis methodology, a basic strategy has been established for stepwise investigations from initial survey of existing information to the final borehole programme at any coastal site. This technique has now been tested and optimised with the progress of the investigations.
Osawa, Hideaki; Ota, Kunio; Hama, Katsuhiro; Sawada, Atsushi; Takeuchi, Shinji; Amano, Kenji; Saegusa, Hiromitsu; Matsuoka, Toshiyuki; Miyamoto, Tetsuo; Toyoda, Gakuji; et al.
JAEA-Research 2008-085, 742 Pages, 2008/11
JAEA-Research-2008-085-1.pdf:26.22MBJAEA-Research-2008-085-2.pdf:16.64MBJAEA-Research-2008-085-3.pdf:28.27MB
This report shows the results the project for the establishment of comprehensive site characterization technology, entrusted from Natural Resources and Energy Agency, Ministry of Economy, Trade and Industry Natural Resources and Energy Agency in 2007.
Yamanaka, Yoshiaki; Matsuoka, Toshiyuki; Asamori, Koichi; Ota, Kunio
Shadan Hojin Butsuri Tansa Gakkai Dai-119-Kai (Heisei-20-Nendo Shuki) Gakujutsu Koenkai Koen Rombunshu, p.73 - 75, 2008/10
Characterisation of the coastal geological environment has now been running since July 2007 at Horonobe, northern Hokkaido, with the main aims of establishing a comprehensive coastal site characterisation technology and enhancing its reliability. Work carried out to date involves a survey and interpretation of the existing information, identification of key investigation issues and planning of ground exploration. Development of technical know-how and decision process for the work, in particular the geophysical surveys, has been initiated to provide "knowledge" to support a site characterisation project.
Kunimaru, Takanori; Yamanaka, Yoshiaki*
no journal, ,
In the this study, the knowledge of knowhow and the judgment grounds, etc. is extracted, arranged from the drilling survey that executes it in the littoral region in Horonobe, and it reflects it in the construction of the littoral region integration data flow.
Yamanaka, Yoshiaki*; Murata, Kazunori*
no journal, ,
A seismic survey for travel time tomography was performed with a high-speed sampling seismic recorder at 500m stage of Mizunami Underground Research Laboratory (MIU). High speed sampling data of seismic wave enables a travel time tomography to estimate an accurate seismic velocity distribution when a target is located near surface. We could observe a clear arrival of p wave by using high speed sampling recorder though the seismic wave of granite at 500m stage is very fast.
Yoshimura, Kimitaka*; Okazaki, Koji*; Osato, Kazumi*; Nakashima, Satoshi*; Osawa, Kenji*; Yabuuchi, Satoshi; Yamanaka, Yoshiaki; Shigeta, Naotaka
no journal, ,
no abstracts in English
Yabuuchi, Satoshi; Yamanaka, Yoshiaki
no journal, ,
no abstracts in English
Yamanaka, Yoshiaki; Hiraga, Naoto; Asamori, Koichi
no journal, ,
no abstracts in English
Semba, Takeshi; Miyamoto, Tetsuo; Yabuuchi, Satoshi; Matsuoka, Toshiyuki; Asamori, Koichi; Yamanaka, Yoshiaki*
no journal, ,
no abstracts in English
Yoshimura, Kimitaka*; Okazaki, Koji*; Osato, Kazumi*; Osawa, Kenji*; Yamaoka, Masanobu*; Nakashima, Satoshi*; Shigeta, Naotaka; Yabuuchi, Satoshi; Yamanaka, Yoshiaki*
no journal, ,
no abstracts in English
Osato, Kazumi*; Yamaoka, Masanobu*; Nakashima, Satoshi*; Yoshimura, Kimitaka*; Okazaki, Koji*; Shigeta, Naotaka; Yabuuchi, Satoshi; Yamanaka, Yoshiaki*
no journal, ,
no abstracts in English
Kunimaru, Takanori; Yamanaka, Yoshiaki; Ota, Kunio; Niizato, Tadafumi; Asamori, Koichi; Hiraga, Naoto; Matsuoka, Toshiyuki
no journal, ,
no abstracts in English
Sakashita, Susumu*; Konishi, Chisato*; Yoshimura, Kimitaka*; Okazaki, Koji*; Shigeta, Naotaka; Yabuuchi, Satoshi; Yamanaka, Yoshiaki*
no journal, ,
no abstracts in English
Saegusa, Hiromitsu; Ota, Kunio; Niizato, Tadafumi; Amano, Kenji; Yamanaka, Yoshiaki; Maekawa, Keisuke; Kunimaru, Takanori; Hama, Katsuhiro
no journal, ,
no abstracts in English
Matsuoka, Toshiyuki; Yamanaka, Yoshiaki; Asamori, Koichi; Amano, Kenji; Niizato, Tadafumi; Ota, Kunio; Shigeta, Naotaka; Marui, Atsunao*; Uchida, Toshihiro*
no journal, ,
no abstracts in English
