Presentation Information
[VI-385]Report on a case of excavating a low-strength ground that has undergone hydrothermal alteration using circular double support
*Yuichi Okazaki1, Yoshitaka Takahashi1, Takahisa Maruyama1, Takeshi Yamada2, Tamio Takahashi2 (1. OBAYASHI CORPORATION, 2. Hokkaido Regional Development Bureau)
Keywords:
Mountain tunnels,Small cross section,Rail method,Circular double shoring,FEM analysis
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