山岳トンネル (11)

[VI-273] Test application of composite application of watertight urethane and silica resin

*SHOZO SUZUKI SUzuki¹, Hironobu Kurita¹, Masaya Miura¹, Kouji Yasuda², Yoshimichi Asai², Hidekazu Ishii³ (1. TOKYU CONSTRUCTION CO., LTD., 2. KATECS Co.,LTD,, 3. JRTT)

Keywords:Water-guiding composite packer, Waterproof Urethane, Large amount of water inflow, Water stop infusion, Tunnel auxiliary method, Tunnel