| 摘要 |
A system and method for lining a host pipe 1 with a liner pipe 10 is provided, in which access to the host pipe 1 is only achieved from a proximal end. The system comprises a flexible liner pipe 10 with an outside diameter less than the inside diameter of the host pipe 1, and a sealing apparatus which seals between the liner pipe and the host pipe. The sealing apparatus comprises a flexible sleeve 14 attached on the outer distal end of the liner pipe 10 to form a pressure-tight seal, which receives a filler material which causes the sleeve 14 to expand towards the inner surface of the host pipe 1. The seal also comprises a packer 17 inserted into the liner pipe which maintains the liner pipes cross-sectional shape against forces experienced during insertion of the liner pipe 10 into the host pipe 1 and during expansion of the sleeve 14 with filler material. The system further comprises a fitting 16 which provides a pressure-tight seal between the liner pipe 1 and the flexible sleeve 14, the fitting 16 including an axially-extending port through which the filler material can be introduced into the sleeve 14. |
