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Onoe, Hironori; Maemura, Tsuneyuki*; Kimura, Hitoshi*; Hishiya, Tomoyuki*; Mizuno, Takashi; Takeuchi, Ryuji; Iwatsuki, Teruki
JAEA-Research 2014-010, 35 Pages, 2014/06
In this study, groundwater flow modeling based on the hydrogeological conceptual model was carried out using data of hydraulic responses and groundwater chemistry changes until 500m depth of MIU excavation. As a result of this study, trend of inflow rate into the MIU facilities and hydraulic and geochemical impacts around the MIU Construction Site caused by the MIU construction were reproduced in groundwater flow simulation. In addition, validation of the hydrogeological conceptual model was confirmed.
Hishiya, Tomoyuki*; Maemura, Tsuneyuki*; Kimura, Hitoshi*; Onoe, Hironori; Saegusa, Hiromitsu; Mizuno, Takashi
JAEA-Research 2013-023, 84 Pages, 2013/11
In this study, hydrogeological modeling and groundwater flow simulations have been carried out in order to construct site descriptive model using data of hydraulic responses and groundwater chemistry changes until 460 m depth of MIU excavation. As a result of this study, the effect of hydraulic conductivity and flow porosity of hydrogeological structure to hydraulic and geochemical impacts due to the MIU excavation were confirmed. In addition, trend of inflow rate into the MIU facilities and hydraulic and geochemical impacts around the MIU Construction Site caused by the MIU construction could be reproduced.
Fujita, Tomoo; Fujisaki, Kiyoshi; Suzuki, Hideaki*; Kawakami, Susumu; Yui, Mikazu; Chijimatsu, Masakazu*; Neyama, Atsushi*; Ishihara, Yoshinao*; Hishiya, Tomoyuki*
Proceedings of 2nd International Conference on Coupled T-H-M-C Processes in Geo-systems; Fundamentals, Modeling, Experiments and Applications (GeoProc 2006), p.416 - 421, 2006/00
We have initiated a research on the coupled Thermo-Hydro-Mechanical-Chemical (THMC) processes and are trying to carry out numerical experiments on the coupled THMC processes in order to predict the near-field long-term evolution. This paper describes the modified THMC model to add on the function of de-gases and gases diffusion, accumulation and dilution phenomena for mass transport analysis, and of ionic exchange, surface reaction and kinetic reaction for geochemical analysis. And also the results of demonstration study with THMC code are shown.
Hosoya, Shinichi*; Ishii, Eiichi; Hishiya, Tomoyuki*
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no abstracts in English