METHOD OF MOVING LONG PIPE Russian patent published in 2005 - IPC

Abstract RU 2253065 C2

FIELD: construction.

SUBSTANCE: method comprises excavating three pits, mounting a wrench in the intermediate pit, preparing two same section of the long pipe for movement, making a pressure-tight chamber in each pipe section, the chamber being defined by the plug at its front end and piston inside it, laying the drawing rope in the exhausted pipe, connecting it to the piston and wrench drum, braking the rope and piston, and moving the pipe by filling the space defined by the plug and piston with pressurized air (gas). Both of the sections of the new pipe move simultaneously from the end pits inside the exhausted pipe to the intermediate pit.

EFFECT: reduced repairing period.

2 dwg

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RU 2 253 065 C2

Authors

Sokolovskij V.I.

Dates

2005-05-27—Published

2003-08-07—Filed