Applicability of countermeasure for reduction of groundwater inflow and construction of the Mizunami Underground Research Laboratory
Mikake, Shinichiro
; Yamamoto, Masaru; Ikeda, Koki; Ishida, Hideaki; Nishigaki, Makoto*
The Mizunami Underground Research Laboratory (MIU) is currently being constructed. During its construction, water inflow into the shafts of the MIU has been increasing and affecting the project progress. In order to reduce the water inflow into the shafts, borehole investigations and pre-excavation grouting have been conducted. The pre-excavation grouting has been undertaken at the predicted inflow area with existing method.