Ground Freezing Work for Osaka-kita Utility Tunnel Shield Construction at Kouno Neyagawa District

The ICELOCK method, our ground freezing method, was employed as a temporary protection work for connecting the shield tunnel and the adjacent shaft at a depth of 25 m. Since construction could not be carried out from the ground surface, ICELOCK were adopted because it has high reliability and has the ability to conduct construction from underground. The construction period written above is for construction on four locations.

(Location: Osaka)