Method for laying a plurality of successive sections of cables in order to form a cabled connection of great length

摘要

A method for laying a plurality of cable sections to be successively positioned in series in a buried duct, according to a flowing-pushing method using a pressurized fluid. The different cable sections are successively introduced into the duct in a single entry point comprising a laying device notably comprising an orifice for introducing a pressurized fluid, a cable section entirely introduced into the duct is pushed towards the position which it should occupy in the duct, only by the pressure of the fluid introduced by said laying device and when a cable section has reached his final position in the duct, an opening is made in the duct near to the rear of the cable section.

主权项

1. A method for laying a plurality of cable sections each having a cable front end and a cable rear end, the cable sections adapted to be successively positioned in series in end to end relationship in a buried duct, according to a flowing-pushing method using a pressurized fluid, comprising the steps of:
successively introducing the plurality of cable sections, leading with the cable front end, into the duct through a laying device, the laying device comprising a pressure housing including structure defining a pressure housing cable entry port, the laying device further including structure defining an orifice adapted for introducing a pressurized fluid into the pressure housing, and the pressure housing being operably coupled to said duct in fluid communication relationship therewith; after a respective cable section is entirely introduced into the duct, pushing that respective cable section through the duct to arrive at a respective cable section final position which it should occupy in the duct, only by the pressure of the pressurized fluid introduced through said laying device and positioning each respective cable section in its respective cable section final position before introducing any successive cable section; and when a cable section has reached a final position in the duct, making an opening in the duct near to the rear end of said cable section.