Mizunami Underground Research Laboratory Project, Annual report for fiscal year 2016

Ishibashi, Masayuki; Hama, Katsuhiro ; Iwatsuki, Teruki  ; Matsui, Hiroya ; Takeuchi, Ryuji  ; Nohara, Tsuyoshi   ; Onoe, Hironori ; Ikeda, Koki; Mikake, Shinichiro ; Iyatomi, Yosuke ; Sasao, Eiji   ; Koide, Kaoru

The Mizunami Underground Research Laboratory (MIU) project is being pursued by the Japan Atomic Energy Agency (JAEA) to enhance the reliability of geological disposal technologies through investigations of the deep geological environment in the crystalline host rock (granite) at Mizunami, Gifu Prefecture, central Japan. On the occasion of the research program and management system revision of the entire JAEA organization in 2014, JAEA identified three important issues on the geoscientific research program: "Development of countermeasure technologies for reducing groundwater inflow", "Development of modeling technologies for mass transport" and "Development of drift backfilling technologies", based on the latest results of the synthesizing research and development (R&D). The R&D on three important issues have been carrying out on the MIU project. In this report, the current status of R&D activities and construction in 2016 is summarized.