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Miyara, Nobukatsu; Matsuoka, Toshiyuki
JAEA-Data/Code 2017-005, 34 Pages, 2017/03
Japan Atomic Energy Agency (JAEA) is performing the Horonobe Underground Research Laboratory Project, which includes a scientific study of the deep geological environment as a basis of research and development for geological disposal of high level radioactive wastes (HLW), in order to establish comprehensive techniques for the investigation, analysis and assessment of the deep geological environment in the sedimentary rock. This report integrates geophysical logging data obtained from the deep borehole investigations (HDB-1 HDB-11) conducted in the Horonobe Underground Research Laboratory Project (Phase I).
Yoshino, Hiromitsu; Kishi, Atsuyasu*; Yokota, Hideharu
JAEA-Data/Code 2015-014, 42 Pages, 2015/09
Long-term pore-pressure-monitoring has been performed using HDB-111 and PB-V01 boreholes in the Horonobe Underground Research Laboratory Project. This report summarizes the results obtained from the starting of monitoring to March 2015.