山岳トンネル(3)

1:50 PM - 2:00 PM JST(4:50 AM - 5:00 AM UTC)

[VI-616] Construction of a large-diameter NATM tunnel directly beneath a national highway and a power station approach road

*Hiroyuki Takahashi¹, Takagi Masamitsu¹, Hiromatsu Naoto¹, Itakura Tooru¹, Sou Fumiharu¹, Sakuma Akira² (1. AokiAsunaro, 2. KokudokoutsusyouKinkichihouseibikyoku)

Keywords:

Preventing tunnel surface subsidence,Tunnel support method,Early closure of tunnel section,AGF construction,Small soil-covered tunnel