Articles
  • A study on new repair methods for subway tunnels using crack self-healing technologies
  • Tetsuya Murakamia, Tae-Ho Ahnb*, Tatsuro Hashimotoc, Norihiko Ogurac, Toshiharu Kishid and Kwang Bo Shime
  • a Infrastructure Maintenance Department, Tokyo Metro Co., Ltd., 19-6, Higashi-ueno 3-chome, Taito-ku, Tokyo, Japan b SERIC R&D Center, SERIC Co., Ltd., 521, HIT, 222 Wangsimni-ro, Seongdong-gu Seoul 133-791 Korea c Engineering Department, CORE Institute of Technology Corporation, HGC bldg., 2F 2-8-3, higashi-kanada Chiyoda-ku, Tokyo 101-0031, Japan d Department of Human and Social Systems, Institute of Industrial Science, Institute of Industrial Science, the University of Tokyo, Japan e International Sustainable Engineering Materials (ISEM) Center, Ceramic Materials Institute & Division of Advanced Materials Sci. Eng., Hanyang University, Seoul 133-791, Korea
Abstract
In this research, the application of repair methods of water leakage cracks using self-healing technologies for subway tunnels is presented. In order to apply crack self-healing water stop agents and quick setting agents in subway tunnels, laboratory and field tests were performed based on various previous researches. Especially, this study focused on development of crack repair materials and their new repair methods. Therefore, various repair materials were examined for new repair materials with selfhealing capability applied to crack sealing method and to patching repair method. The results show that the proposed water leak repair methods using water stop agent, quick setting agent and patching materials using self-healing ingredient were effective under the subway tunnel conditions. It is preferable in water leak repair to add self-healing components to sealers and water stop agents.

Keywords: Crack, Self-healing, Water stop agents, Quick setting agents, Subway tunnels.

This Article

  • 2015; 16(S1): 95-97

    Published on Nov 15, 2015