シールドトンネル (11)

[VI-185] Corresponding to complex ground by long-distance mud-type propulsion directly under the seafloor

*Keiichi Yasukawa¹, Yasushi Hayashi², Yoshihiro Tanaka¹ (1. OBAYASHI CORPORATION, 2. TOHO GAS NETWORK CORPORATION)

Keywords:siltstone, piece of wood, volcanic ash, Slurry pipe jacking method, arm crusher