Tokyo-Gaikan Expressway Project

To alleviate traffic congestion, construction is being carried out on the Tokyo Outer Ring Road (Gaikan-dō) from Koyama in Matsudo City, Chiba Prefecture, to Takaya in Ichikawa City.
In this project, our jet grouting method and chemical grouting method have been adopted at the Kokubun and Ichikawa-Naka Construction Area, which involve ground improvement and the development of surrounding facilities associated with the construction of the expressway.

(Location: Chiba)