山岳トンネル(2)

10:50 AM - 11:00 AM JST(1:50 AM - 2:00 AM UTC)

[VI-110] Tunnel Excavation in Water-Bearing Unconsolidated White Tuffaceous Silt Layer

*Shin Sugaya¹, Kenji Saikawa², Kazuhiro Koiwa¹, Takuya Todate¹, Daiki Yoshida¹, Dohta Awaji¹, Ryo Hemmi¹ (1. Shimizu corporation, 2. Aomori River and National Highway Office, Tohoku Regional Development Bureau, Ministry of Land, Infrastructure, Transport and Tourism)

Keywords:

Shirasu soil,White tuffaceous silt layer,Muding,Measurements B,Drainage Filter Layer