| 摘要 |
A method and an apparatus for reconstructing corroded pipes are disclosed in which a long, new pipe (P2) can be inserted smoothly and without excessive force, into an older pipe (P1). The method is particular in that it involves the insertion of a new pipe (P2) into an old pipe (P1), using a dolly (2) to transfer a reaction force to the old pipe (P1). The tail end of the new pipe (P2) is attached to the dolly (2). The front end of the new pipe (P2) is sealed off. A plug (3) is inserted into the dolly (2) from the tail end of the new pipe (P2), which is filled with pressurized fluid. The dolly (2) is then moved in the direction of the old pipe (P1) to insert the new pipe (P2) into the old pipe (P1). <IMAGE> |
