Study on Engineering Technologies in the Mizunami Underground Research Laboratory (the 2003)

Noda, Masaru*; Toida, Masaru*; Nobuto, Jun*; Shimono, Masato*

In the Mizunami Underground Research Laboratory of Japan Nuclear Cycle Development Institute (hereafter, JNC) Mizunami Underground Research Laboratory plan of the geoscientific research which becomes basic of the research on the geological disposal of the high activity waste is advanced. This study is conducted for engineering technologies in the MIU design and construction technologies for the research drift and development of excavation and construction measures technologies, considering whole research program in the future and whole schedule. The engineering technology here consists of two researches which are on the research on the design and the construction technology under the large depth geological environment and which becomes basic of the geological disposal technology develoment. Research items are followings; Study on the technologies for feeding back measurement results to the design and the construction scheme, study on the technologies for inspection and assurance of the qualities of research and construction, study on construction technologies to measure the unexpected water inflow during excavation, study on the influence of earthquakes on underground research facilities, application study of the risk management method to the excavation phase of the research drift.