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Yamamoto, Takuya*; Shimo, Michito*; Fujiwara, Yasushi*; Hattori, Hiromichi*; Nago, Makito*; Tadokoro, Teruo*; Nakagaki, Shinichi*
JNC TJ5400 2005-006, 795 Pages, 2004/03
JNC-TJ5400-2005-006.pdf:96.75MBJNC-TJ5400-2005-006(errata).pdf:0.08MB
HDB-8 (470 m deep Borehole) was drilled at Hokushin Area of Horonobe Town, Teshio District, Hokkaido, Japan in order to investigate the characteristic of deep underground.
Yamamoto, Takuya*; Shimo, Michito*; Fujiwara, Yasushi*; Hattori, Hiromichi*; Nago, Makito*; Tadokoro, Teruo*; Nakagaki, Shinichi*
JNC TJ5400 2005-005, 704 Pages, 2004/03
JNC-TJ5400-2005-005.pdf:70.08MBJNC-TJ5400-2005-005(errata).pdf:0.08MB
HDB-7 (520 m deep Borehole) was drilled at Hokushin Area of Horonobe Town, Teshio District, Hokkaido, Japan in order to investigate the characteristic of deep underground.
Yamamoto, Takuya*; Shimo, Michito*; Fujiwara, Yasushi*; Hattori, Hiromichi*; Nago, Makito*; Tadokoro, Teruo*; Nakagaki, Shinichi*
JNC TJ5400 2005-004, 1182 Pages, 2004/03
JNC-TJ5400-2005-004.pdf:129.98MBJNC-TJ5400-2005-004(errata).pdf:0.08MB
HDB-6 (620 m deep Borehole) was drilled at Hokushin Area of Horonobe Town, Teshio District, Hokkaido, Japan in order to investigate the characteristic of deep underground.
Yamamoto, Takuya*; Shimo, Michito*; Fujiwara, Yasushi*; Hattori, Hiromichi*; Nago, Makito*; Tadokoro, Teruo*; Nakagaki, Shinichi*
JNC TJ5400 2005-003, 513 Pages, 2004/03
JNC-TJ5400-2005-003.pdf:41.67MBJNC-TJ5400-2005-003(errata).pdf:0.08MB
HDB-6 (620 m deep Borehole), HDB-7 (520 m deep Borehole) and HDB-8 (470 m deep borehole) were drilled at Hokushin Area of Horonobe Town, Teshio District, Hokkaido, Japan in order to investigate the characteristic of deep underground.
Yamamoto, Takuya*; Shimo, Michito*; Fujiwara, Yasushi*; Hattori, Hiromichi*; Nago, Makito*; Tadokoro, Teruo*; Kuji, Masayoshi*
JNC TJ5420 2004-005, 855 Pages, 2003/03
JNC-TJ5420-2004-005.pdf:76.83MBJNC-TJ5420-2004-005(errata).pdf:0.08MB
Three 520m deep boreholes were drilled at Horonobe Town, Teshio District, Hokkaido in order to investigate the characteristics of deep sedimentary rock in the Horonobe Underground Research Program. The results of the investigations were applied to the model construction and to the numerical analysis. The model consists of geological, mechanical, hydrological and geo-chemical characteristics. This report summarizes the results of the boring and investigations of HDB-5 (Horonobe Deep Borehole #5).
Yamamoto, Takuya*; Shimo, Michito*; Fujiwara, Yasushi*; Hattori, Hiromichi*; Tadokoro, Teruo*; Iwama, Hikoe*; Nago, Makito*; Kumamoto, So*
JNC TJ1400 2002-010, 921 Pages, 2002/07
JNC-TJ1400-2002-010.pdf:63.42MBJNC-TJ1400-2002-010(errata).pdf:0.08MB
Ijiri, Yuji*; Hattori, Hiromichi*; Suzuki, Shunichi*; Oishi, Masaya*; Kubota, Shigeru*; Adachi, Tetsuya*; Yamamoto, Takuya*
JNC TJ8400 2001-010, 143 Pages, 2001/03
JNC-TJ8400-2001-010.pdf:17.19MB
The evaluation of uncertainty of geological environment is a key issue in assessing a performance of a deep geological disposal system for high-level nuclear waste. The geological environment uncertainty is arose from data obtained from surveys and model used for a performance assessment.The objectives of this study is to develop a rational planning methodology of site characterization using the Horonobe site as a model case, and to establish a modeling methodology using the Tono site as a model case. At the Horonobe site, first, a conceptual model is constructed based on the information at every stage of site characterization procedure. A sensitivity analysis is performed using various conceptual models and data. If conceptual models uncertainty have a great impact on the result of performance assessment analysis, surveys that detect the most appropriate conceptual model are conducted in the next stage of site characterization. If data uncertainty have a great impact on the result of performance assessment analysis, surveys that decrease the data uncertainty are conducted. Thus, a rational site characterization methodology in which the most sensitive items are preferentially detected in the next stage of site characterization is developed. This concept of a rational site characterization methodology is described in this report. In addition, preliminary conceptual model is developed based on geological information around Horonobe site, and data uncertainty for the sensitivity analysis which will be conducted in next year is investigated. At the Tono site, literature on model uncertainty is surveyed, and data obtained at the Tono site is reviewed from modeling point of view.
Ijiri, Yuji*; Hattori, Hiromichi*; Suzuki, Shunichi*; Oishi, Masaya*; Kubota, Shigeru*; Adachi, Tetsuya*; Yamamoto, Takuya*; Igarashi, Takafumi*; Sugihara, Yutaka*
JNC TJ8400 2001-009, 41 Pages, 2001/03
JNC-TJ8400-2001-009.pdf:6.69MB
no abstracts in English