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Report No.

Excavation disturbance analysis based on MBC Model for predicting of the rock mass behavior during excavation of shafts and research galleries at the Mizunami Underground Research Laboratory

Seno, Yasuhiro; Nakama, Shigeo ; Sato, Toshinori*  ; Mori, Takayuki*; Morikawa, Seiji*; Tabei, Kazuto*; Suyama, Yasuhiro*; Murakami, Koji*

A 3D MBC(Micro-mechanics Based Continuum model) numerical analysis was carried out to predict the rock mass behavior of the complex (articulated) section at -500 m. Properties were chosen based on the Rock Mechanics Model constructed in the Surface-based Investigation Phase (Phase I).



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