FREEZING PIPE UNIT, FREEZING DEVICE AND FREEZING METHOD USING FREEZING PIPE UNIT

摘要

PROBLEM TO BE SOLVED: To permit the works of reinforcing and repairing an underground structure safely and at a low cost to be carried out while reducing an influence on the ground around.;SOLUTION: When the ground 2 outside the underground structure 3 is to be frozen, a freezing pipe unit 22 made by connecting a plurality of freezing pipes 10 each having an inlet and an outlet of a refrigerant and having a structure where the refrigerant inpoured from the inlet of one of the freezing pipes 10 is discharged from the outlet of another freezing pipe 10 through the freezing pipes 10 is used.;COPYRIGHT: (C)2011,JPO&INPIT