| 摘要 |
<p>The method involves inserting a swelling packer (1) in a pipeline (11) or a channel till a part of an elastic sleeve (13) overlapping a free surface of the packer is found at a height of a passage (21) between pipes (8, 9) of the pipeline or two channel segments of the channel. The packers are widened till liners (4, 5) and the elastic sleeve lie against an inner wall of the pipeline or the channel. The sleeve is expanded after hardening of time delay hardening chemicals and is removed from the pipeline or the channel, while liners and the elastic sleeve remain in the pipeline or the channel. An independent claim is also included for a swelling packer for implementing the method for trenchless repair of damaged place in channels and pipelines.</p> |
