FIELD: mineral exploration and production in continental shelf of freezing sea, particularly to protect drilling platforms against ice action.
SUBSTANCE: protective device is made as band structure installed on water pool bottom and anchored to the pool bottom. The protective device is spaced a distance from marine engineering structure wall and pier thereof to prevent contact between protective device and marine engineering structure pier. The distance is not less than that determined from predetermined correlation. Liquid present in space defined between engineering structure pier and protective device wall may be heated by communicating above space with heat source or by installing heater in the space. Liquid may be also removed from the space and lower and upper protective device parts may be isolated from ambient space by means of flexible enclosure. Above space may be filled with liquid having low freezing temperature.
EFFECT: increased efficiency of marine engineering structure protection against external ice action by reliable engineering structure isolation from ice.
4 cl, 1 dwg
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Authors
Dates
2006-11-27—Published
2004-12-31—Filed