放射性廃棄物処分 (6)

[CS12-35] Verification of Borehole Investigations in the Preliminary Investigation Phase (2) - Hydraulic testing on fragile layers in deep boreholes -

*Keita Morikawa¹, Kaname Iwatake¹, Tadashi Yamashita¹, Shoji Seno², Masayuki Ishibashi², takako Miyoshi², Takuma Hasegawa³, Shunichi Okamoto³, Takanori Kunimaru⁴, Nishio Hikaru⁴ (1. DIA CONSULTANTS, 2. KAJIMA, 3. Central Research Institute of Electric Power Industry, 4. Nuclear Waste Management Organization of Japan)

Keywords:Borehole Investigations, Feasibility study, Hayama Group, Mudstone, Sequential hydraulic testing