Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Uyama, Masao*; Hitomi, Takashi*; Sato, Toshinori
Doboku Gakkai Heisei-25-Nendo Zenkoku Taikai Dai-68-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), 2 Pages, 2013/09
no abstracts in English
Hitomi, Takashi*; Uyama, Masao*; Sato, Toshinori
Doboku Gakkai Heisei-25-Nendo Zenkoku Taikai Dai-68-Kai Nenji Gakujutsu Koenkai Koen Gaiyoshu (DVD-ROM), 2 Pages, 2013/09
no abstracts in English
Komatsu, Mitsuru*; Nishigaki, Makoto*; Seno, Shoji*; Tagishi, Hirotaka*; Takenobu, Kazuyoshi*; Kishi, Atsuyasu
no journal, ,
Infiltration rate at the ground surface is one of the essential boundary conditions for a quantitative evaluation of groundwater flow. Conventional method for quantifying infiltration rate based on the water budget, however, includes significant uncertainties resulting from different types of quantities to be measured. In this study, focusing on a method where the infiltration rate is estimated directly from temporal changes in soil water contents in the region of interest, the measurement data was confirmed based on the 
unsaturated hydraulic tests. Then, the reliability of the measurement was verified by comparing the data to the laboratory test results and uncertainties associated with the measurements were quantified.
Hosoya, Shinichi*; Seno, Shoji*; Nakajima, Makoto*; Atsumi, Hiroyuki*; Ishibashi, Masayuki; Morikawa, Keita; Onoe, Hironori; Kunimaru, Takanori
no journal, ,
Discrete Fracture Network (DFN) model provides the basis of groundwater flow analysis and solute transport analysis for crystalline rock. Due to its complexity, it is difficult to estimate how the input parameters influence the result of the analysis. In this study, using the data obtained in the Mizunami Underground Research Laboratory (MIU) project conducted by Japan Atomic Energy Agency (JAEA), we examined how the modeling methodology influenced the result of groundwater flow analysis and solute transport analysis.
Nakajima, Makoto*; Atsumi, Hiroyuki*; Seno, Shoji*; Masumoto, Kazuhiko*; Kawabata, Junichi*; Kunimaru, Takanori; Onoe, Hironori; Saegusa, Hiromitsu; Hayano, Akira; Watanabe, Kunio*
no journal, ,
Solute transport conceptual models for crystalline rock environment is developed in the Mizunami Underground Research Laboratory (MIU) project conducted by Japan Atomic Energy Agency (JAEA) in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). In this study, discrete fracture network model is developed using channel network to establish hydro-geological model and analyze factors in the solute transport behavior.
Atsumi, Hiroyuki*; Nakajima, Makoto*; Seno, Shoji*; Masumoto, Kazuhiko*; Kawabata, Junichi*; Onoe, Hironori; Kunimaru, Takanori; Sawada, Atsushi; Saegusa, Hiromitsu; Watanabe, Kunio*
no journal, ,
Solute transport conceptual models for crystalline rock environment is developed in the Mizunami Underground Research Laboratory (MIU) project conducted by Japan Atomic Energy Agency (JAEA) in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). In this study, groundwater flow analysis and solute transport analysis are conducted to analyze factors in the solute transport behavior using hydro-geological model composed of channel network.
Seno, Shoji*; Komatsu, Mitsuru*; Nishigaki, Makoto*; Tagishi, Hirotaka*; Takenobu, Kazuyoshi*; Kishi, Atsuyasu
no journal, ,
The soil moisture measurement method is being developed with the application of the optical fiber sensor, that is thought to be more advantageous than the conventional methods in the soil moisture measurement regarding its characteristics of multiple-point and long-distance measurement. We report the results obtained in the performance test of the optical fiber moisture metering sensor in the course where its fundamental mechanism and its principle are being developed.
Tanaka, Shingo; Yokota, Hideharu; Motoshima, Takayuki*; Fujita, Yuji*
no journal, ,
no abstracts in English
Hagihara, Takeshi*; Minamide, Masashi*; Nago, Makito*; Ogawa, Hiroyuki*; Uyama, Mikinori*; Kisu, Yoshio*; Morimoto, Tsutomu*; Kudo, Hajime; Tsusaka, Kimikazu
no journal, ,
no abstracts in English
Minamide, Masashi*; Hagihara, Takeshi*; Nago, Makito*; Ogawa, Hiroyuki*; Uyama, Mikinori*; Kisu, Yoshio*; Morimoto, Tsutomu*; Yabuki, Yoshio*; Kudo, Hajime; Inagaki, Daisuke; et al.
no journal, ,
no abstracts in English
Ikuta, Yuki*; Takayama, Yusuke*; Tsurumi, Shuhei*; Ichikawa, Yasuaki*; Iizuka, Atsushi*; Kawai, Katsuyuki*; Taki, Tomihiro; Sakao, Ryota
no journal, ,
As a part of remediation of closed uranium mine, "Yotsugi Mill Tailings Pond" has been remediated in Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency. The aim of remediation is to take measures to reduce the load of water treatment and the radon exposure to humans in future, and to prevent the occurrence of relevant environmental contamination. So far, the upstream of the Pond has been covered by the multi-layered capping in which layers are set to use gravel, sand and decomposed granite soil to drain penetrated rainwater to the neighboring river. This capping system needs to be monitored on a long-term basis and to be evaluated to work as expected in advance, therefore seepage analysis and settlement analysis has carried out. As a result, Settlement of analysis was well accorded with measured value and marked change of saturation accompanied by rain was not observed in the seepage analysis.