Mizunami Underground Research Laboratory Project, Plan for fiscal year 2019

Takeuchi, Ryuji  ; Iwatsuki, Teruki  ; Matsui, Hiroya ; Ikeda, Koki; Mikake, Shinichiro ; Hama, Katsuhiro ; Iyatomi, Yosuke ; Matsuoka, Toshiyuki; Sasao, Eiji   

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 City, Gifu Prefecture, central Japan. On the occasion of the reform of the entire JAEA organization in 2014, JAEA identified three important remaining issues on the geoscientific research program based on the synthesized latest results of research and development (R&D): "Development of countermeasure technologies for reducing groundwater inflow", "Development of modeling technologies for mass transport" and "Development of drift backfilling technology". The R&D on three remaining important issues have been carrying out in the MIU Project. This report summarizes the R&D activities planned for fiscal year 2019 on the basis of the MIU Master Plan updated in 2015 and Investigation Plan for the Third Medium to Long-term Research Phase.