Development of high-performance water-guiding composite packers for large amounts of spring water

9:50 AM - 10:00 AM

[VI-272] Development of high-performance water-guiding composite packers for large amounts of spring water

*Koji Yasuda¹, Yoshimichi Asai¹, Masaya Miura², Shouzou Suzuki², Hidekazu Ishii³ (1. KATECS Co.,LTD, 2. TOKYU CONSTRUCTION, 3. JRTT)

Keywords:Water-stopping urethane, Water-guiding composite packer, Plenty of water, Water stop infusion, Tunnel auxiliary method, Tunnel

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