Protective construction for a platform installed in the open sea

Details Protective construction for a platform installed in the open sea Protective construction for a platform installed in the open sea

1986-05-02

1987-05-19

Husar, Cornelius J.

Hydraulic and earth engineering

Marine structure or fabrication thereof

In or on frozen media

405 61, 405211, E02B 1700

Patent

active

046663436

ABSTRACT:
A protective device protects a platform installed in the open sea against the impact of floating objects such as icebergs, ice formations, or ships. A massive protective body surrounds the platform to be protected and has a bottom with inclined bearing surfaces. The body is movably supported on large bearings having inclined bearing areas that slidingly engage the bearing surfaces. When the protective body is struck by a floating object the kinetic energy of the impact pushes the protective body upwards on a portion of the inclined bearing areas and is transformed into potential energy of the elevated body. The protective body is able to thrust the floating object away from the platform as the body moves downwardly to its original position as its potential energy is reconverted to kinetic energy.

REFERENCES:
patent: 4245929 (1981-01-01), Pearce et al.
patent: 4325655 (1982-04-01), Jahns et al.
patent: 4425055 (1984-01-01), Tiedemann
patent: 4470724 (1984-09-01), Pollack
patent: 4479742 (1984-10-01), Bruce
Ocean Industry, Dec. 1982, p. 87, Chain Star Platform.
Gerwick et al., "Development of a Structural Concept . . . "; May 7-9, 1984, OTC 4799.
"The Hibernia Development" article.

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