GROUT MATERIAL FILLING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a grout material filling method for filling a grout material in a void part of a tunnel pilot channel back surface part, which is capable of making the void part sufficiently water permeable.

SOLUTION: In the grout material filling method for filling the grout material in the void part between the tunnel pilot channel back surface part and the ground, the grout material mixed with granular ice is filled in the void part and hardened before the ice melts.

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