| 摘要 |
There is provided a method of lining the internal surface of a pipe particularly an underground pipe. Resin is injected into one end of the pipe and a lining pig is inserted in the pipe behind the resin. Positive and Negative pressures are applied behind and in front of the resin respectively. The pressures are controlled to produce a stabilised pressure differential to move the resin and pig through the pipe thereby lining the pipe. A pipe having one or more branch pipes can be lined. <IMAGE> |
