| 摘要 |
PROBLEM TO BE SOLVED: To construct a lining pipe for any construction condition of an existing pipe and a lining pipe in a short period of time, with favorable workability, and in a suitable manner, and to suppress deformation of the lining pipe caused by injection pressure of a backfill material into the existing pipe with a simple structure.SOLUTION: A lining pipe 1 is arranged in an inside of an existing pipe 5, a bag-shaped pressurization bag 2 consisting of an impermeable material is disposed at an inner peripheral side of the lining pipe 1, liquid or compressed air is encapsulated in an inside of the pressurization bag 2 to inflate the pressurization bag 2, and an inner pressure of the pressurization bag 2 is maintained at pressure that exceeds an injection pressure of a backfill material 3. In a state in which the lining pipe 1 is pressed from an inside by the pressurization bag 2, the backfill material 3 filling is performed by injection filling in a gap between the lining pipe 1 and the existing pipe 5, and the backfill material 3 is cured to regenerate the existing pipe 5. |
