Published November 2008 | Version v1
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Annual report on rock mechanics research at the Mizunami Underground Laboratory project. FY 2006

  • 1. Tokyu Construction Co., Ltd., Tokyo (Japan)
  • 2. Japan Atomic Energy Agency, Geological Isolation Research and Development Directorate, Geological Isolation Research Unit, Tokai, Ibaraki (Japan)
  • 3. Hazama Corp., Tokyo (Japan)
  • 4. Japan Atomic Energy Agency, Geological Isolation Research and Development Directorate, Tono Geoscientific Research Unit, Mizunami, Gifu (Japan)
  • 5. Ministry of Economy, Trade and Industry, Tokyo (Japan)

Description

In order to establish a scientific and technical basis of geological disposal of high level radioactive waste, Japan Atomic Energy Agency (JAEA) is advancing the geo-scientific research project of Mizunami Underground laboratory (MIU) in crystalline rock environment at Tono Geo science Center (TGC). At MIU, the geo-scientific research is planned to be carried out in three phases over a period of 20 years; Surface-based Investigation Phase (Phase I), Construction Phase (Phase II) and Operation Phase (Phase III). Currently, the project is under the Construction Phase. This report presents the following results of rock mechanics studies conducted in the 2006 fiscal year, 1) Boring investigation for rock mechanics from the sub stage at GL.-100m, 2) Advanced study for determination of three dimensional distributions of the initial rock stress, 3) Advanced study on core-based stress measurement, 4) Basic study on long term behavior of crystalline rock. (author)

Availability note (English)

Available from JAEA; DOI: https://doi.org/10.11484/jaea-research-2008-084

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Imprint Pagination
49 p.
Report number
JAEA-Research--2008-084

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Notes
29 refs., 43 figs., 3 tabs.