Japan Society of Civil Engineers 2019 Annual Meeting

Presentation information

第VI部門

リニューアル (11)

Thu. Sep 5, 2019 4:10 PM - 5:40 PM VI-7 (幸町総合教育棟 第21大講義室)

座長:森瀬 喬士(中日本高速道路)

[VI-1028] Application of infusion materials into voids behind the lining having running water resistance

*蚊津見 和雅1、近藤 智1 (1. JR東海)

Keywords:Tunnel, Major repair techniques, Injection of grout into voids behind the lining, Infusion materials, Running water resistance, Accelerating agent

Some tunnels in Tokaido Shinkansen have gaps between the lining concrete and the ground. In order to enhance the integration between them, the constructions that filled in gaps with the plastic infusion materials have been carried out. They include cement and might be alkalinized high and drained outside tunnels. Therefore, it was necessary to take measures against the influence on spring by them. This paper reports the result of experiments for the application of the quick setting materials that had resistance to the running water and the result of the application in the construction field.

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