Data of long term hydro-pressure monitoring on Mizunami Underground Research Laboratory Project for fiscal year 2013-2014

Keya, Hiromichi; Beppu, Shinji*; Takeuchi, Ryuji

JAEA-Data/Code 2018-011, 112 Pages, 2018/10

JAEA-Data-Code-2018-011.pdf:10.11MB
JAEA-Data-Code-2018-011-appendix1(DVD-ROM).zip:388.14MB
JAEA-Data-Code-2018-011-appendix2(DVD-ROM).zip:467.11MB
JAEA-Data-Code-2018-011-appendix3(DVD-ROM).zip:325.24MB

Mizunami Underground Research Laboratory (MIU) Project has three overlapping phases: Surface-based investigation phase (Phase I), Construction phase (Phase II), and Operation phase (Phase III), with a total duration of 20 years. Currently, the project is being carried out under the Phase II and the Phase III. One of the Phase II goals of Project is set to develop and revise models of the geological environment using the investigation results obtained during excavation, and determine and assess the changes in the geological environment in response to excavation. The long term hydro-pressure monitoring has been continued to achieve the Phase II goals. This paper describes the results of the long term hydro-pressure monitoring from April 2013 to March 2015.

Influence on groundwater flow conditions by groundwater pressure change induced by earthquakes; Case study of Tono Area

Takeuchi, Ryuji; Tsuyuguchi, Koji*; Onoe, Hironori; Saegusa, Hiromitsu*; Beppu, Shinji

Genshiryoku Bakkuendo Kenkyu (CD-ROM), 22(2), p.37 - 52, 2015/12

https://doi.org/10.3327/jnuce.22.2_37

Assessment of the geological environment for the long term safety of geological disposal systems for high-level radioactive waste requires consideration for any phenomenon resulting in cumulative change to the geological environment at the regional scale. Groundwater pressure changes induced by earthquakes, for example, are one of the phenomena to be considered. Groundwater pressure changes induced by earthquakes have been observed during long-term monitoring carried out by Japan Atomic Energy Agency in the Tono Area, Gifu. In this paper, the observations of groundwater pressure change induced by earthquakes are summarized. In addition, an impact on groundwater flow conditions induced by earthquakes is discussed. In order to evaluate the long-term stability of groundwater flow condition, it is important to focus not only the change of groundwater pressure by earthquakes but also the change of the hydraulic gradient and hydraulic permeability.

Mizunami Underground Research Laboratory Project, Annual report for fiscal year 2013

Hama, Katsuhiro; Mikake, Shinichiro; Nishio, Kazuhisa; Kawamoto, Koji; Yamada, Nobuto; Ishibashi, Masayuki; Murakami, Hiroaki; Matsuoka, Toshiyuki; Sasao, Eiji; Sanada, Hiroyuki; et al.

JAEA-Review 2014-038, 137 Pages, 2014/12

JAEA-Review-2014-038.pdf:162.61MB

Japan Atomic Energy Agency (JAEA) at Tono Geoscience Center (TGC) is pursuing a geoscientific research and development project namely the Mizunami Underground Research Laboratory (MIU) Project in crystalline rock environment in order to construct scientific and technological basis for geological disposal of High-level Radioactive Waste (HLW). The MIU Project has three overlapping phases: Surface-based Investigation phase (Phase I), Construction phase (Phase II), and Operation phase (Phase III). The MIU Project has been ongoing the Phase II and the Phase III in fiscal year 2013. This report presents the results of the investigations, construction and collaboration studies in fiscal year 2013, as a part of the Phase II and Phase III based on the MIU Master Plan updated in 2010.

Data of long term hydro-pressure monitoring on Tono Regional Hydrogeological Study Project for fiscal year 2012

Beppu, Shinji; Karino, Tomoyuki*; Takeuchi, Ryuji

JAEA-Data/Code 2013-012, 43 Pages, 2013/12

JAEA-Data-Code-2013-012.pdf:3.68MB
JAEA-Data-Code-2013-012-appendix(CD-ROM).zip:151.23MB

The Regional Hydrogeological Study (RHS) Project is a one of the geoscientific research programme at Tono Geoscience Center (TGC). This project started since April 1992 and main investigations were finished to March 2004. Since 2005, hydrogeological and hydrochemical monitoring have been continued using the existing monitoring system. This paper describes the results of the long term hydro-pressure monitoring from April 2012 to March 2013.

Study on hydrogeology in crystalline fractured rock; Groundwater pressure changes induced by the 2011 off the Pacific coast of Tohoku Earthquake in Tono area, Japan

Tsuyuguchi, Koji*; Takeuchi, Ryuji; Onoe, Hironori; Sato, Seiji; Onuki, Kenji; Beppu, Shinji; Ogata, Nobuhisa

no journal, , 

no abstracts in English

Groundwater pressure monitoring in the Mizunami Underground Research Laboratory Project; Impact of groundwater pressure changes induced by earthquake on groundwater flow condition

Saegusa, Hiromitsu; Takeuchi, Ryuji; Onoe, Hironori; Beppu, Shinji

no journal, , 

Mizunami Underground Research Laboratory Project; Hydrogeological study during the construction phase

Onoe, Hironori; Beppu, Shinji; Onuki, Kenji; Kohashi, Akio; Takeuchi, Ryuji; Saegusa, Hiromitsu

no journal, , 

no abstracts in English