| 摘要 |
An apparatus for pushing forward pipes along a pipe line section is arranged to be brought down into a manhole connected to the pipe line section, and includes a pushing piston (20,26) exerting a pushing force on a pipe (8,12) with support of a holding-up device (2,18). The pushing piston (20) at its leading end carries rods (27) extending essentially to the rear end of the pushing piston and there carry a pressure abutment (28) for bringing the pipe with it during the forward pushing movement of the piston, said rods (27) aiding in supporting the pipe (8). (Figure 1) |
