Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1985-04-08
1987-04-21
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405158, 405166, F16L 104, B63B 2100
Patent
active
046592539
ABSTRACT:
A buoyant material/cable assembly is formed by placing elongated segments of a syntactic foam material around an underwater cable or the like to form a structure suitable for deep water applications. Banding in the form of oppositely directed spirals extend about the assembly and about its length to secure the segments together, to the cable, and against relative movement with respect to the cable. The bandings are fastened together at selected intervals along their length.
Another form of the assembly consists of individual units of buoyant material formed of combined segments, secured together by bands. The units are spaced along the length of the cable.
Another form consists of individual flotation units, or buoys, secured by flexible links to the cable. Oppositely directed spiral bandings extend along the length of the cable to secure the flexible links against movement with respect to the cable and with respect to each other.
A floating platform is provided with cable tensioning, storage and feeding equipment; banding equipment; fastening equipment; buoyant material storage and supply reels and cable storage and supply reels in order to facilitate the construction of a buoyant material/cable assembly and simultaneous laying of the cable in deep water applications.
While cable is continuously fed from storage and into the water the flotation material is applied along its length and secured to the cable. The amount of flotation material applied is varied to accommodate the laying conditions and seafloor conditions.
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