山岳トンネル (14)

[VI-318] Tunneling by Trevi-tube Method beneath Municipal Road in Low Overburden Condition

*Yuuta Kawasaki¹, Keita Igawa¹, Atsushi Uneda¹, Kazuyuki Kuriyama¹, Daisuke Mastumoto², Yutarou Mine², Kzuki Yamazaki², Wataru ueno² (1. kajima corporation, 2. East Nippon Expressway Company Limited)

Keywords:Auxiliary methods, Trevi-tube Method, Low overburden area, Underground utilities, Precision of drilling, Square-shaped tunnel