山岳トンネル (3)

2:30 PM - 2:40 PM JST(5:30 AM - 5:40 AM UTC)

[VI-364] Deformation and countermeasures during tunnel excavation in metamorphic rock with peelability

*Kazuki Ihara¹, youichirou shimizu¹ (1. Toda Corporation)

Keywords:

metamorphic rock,deformation,measurement B,early closure,inverted strut

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