Method of producing and installing offshore structures

Details Method of producing and installing offshore structures Method of producing and installing offshore structures

1976-12-13

1978-09-12

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

Floatable to site and supported by marine floor

405207, E02D 500, F02D 2302

Patent

active

041126971

ABSTRACT:
The method uses a construction and launch barge having a shallow draft hull with a construction deck supporting at its center a floatable offshore structure both during construction thereof and during the towing of the barge to the site where the offshore structure is to be installed. In order to maintain stability, a plurality of hollow column stabilizers are provided on the barge; these may be, e.g., four, one adjacent to each corner of the barge and extending up high thereabove. Large offshore structures of concrete are constructed on the barge in relatively shallow water and then towed across relatively shallow water to a desired location and then the barge is separated from the offshore structure by sinking the barge to a sufficient depth, releasing the then-floatable offshore structure from the barge, and then displacing the barge away from the offshore structure. Then the barge is raised again and returned to shore. The offshore structure may then be lowered into its operating location.

REFERENCES:
patent: 2210408 (1940-08-01), Henry
patent: 3186180 (1965-06-01), Swanlund et al.
patent: 3464212 (1969-09-01), Yamagata et al.
patent: 3823564 (1974-07-01), Crout et al.

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