シールドトンネル(8)

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

[VI-990] Prior removal of rock masses that would impede shield tunneling based on geological survey results -Hokkaido Shinkansen, Yotei Tunnel (Hirafu Site)-

*Ryota Kobe¹, Shigeru Uematsu¹, Masashi Negoro² (1. Japan Railway Construction, Transport and Technology Agency, 2. Okumura Corporation)

Keywords:

SENS,NATM,BG Method,elastic wave velocity,resistivity,debris avalanche depostis