Presentation Information
[VI-1041]Construction of large-section NATM tunnels in low-speed zones and directly under national highways
*Naoto Hiromatsu1, Masamitsu Takagi1, Tooru Itakura1, Fumiharu Sou1, Shinichi Chiku1, Hiroyuki Takahashi1 (1. ASUNARO AOKI CONSTRUCTION)
Keywords:
low speed zone,Drilling logging,extra bolt,AGF,Small soil cover
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