A SUBMARINE PIPELINE IS LAID
A sumbarine pipeline is laid from a barge or the like which pays out a string of initially horizontal pipe by calculating the minimum radius of curvature for the pipe within the elastic bending stress limits; determining the induced axial force necessary to maintain it in a bending radius greater than the minimum; securing the pipeline on the floor of the body of water; clamping the pipe to a stationary support on the barge; engaging the pipe with a horizontally movable second support braked against movement with respect to the barge by a force equal to the axial tension force; disengaging the stationary support; moving the barge away from the anchorage approximately the stroke distance of the braking device; stopping the barge; re-engaging the stationary support; disengaging the second movable support; and returning the movable support to a starting position.
- U.S. Patent Classification: C1.61/72.3.
Houston Contracting Company,
- Berard, D J
- Publication Date: 1970-1-27
- TRT Terms: Construction; Pipe laying; Pipelines
- Candidate Terms: Pipe laying ships
- Old TRIS Terms: Pipeline construction
- Subject Areas: Construction; Marine Transportation; Pipelines; Terminals and Facilities;
- Accession Number: 00056074
- Record Type: Publication
- Source Agency: American Petroleum Institute
- Report/Paper Numbers: Patent
- Files: TRIS
- Created Date: Jul 15 1974 12:00AM