FLOATING PLATFORM AND METHOD OF ITS CONTROL Russian patent published in 2013 - IPC B63B35/44 

FIELD: transport.

SUBSTANCE: invention relates to floating platforms. Floating platform for waters with ice comprises gull with outer sidewalls and metalling device. Hull is symmetric about platform vertical central axis and is closed at lower part by bottom. Platform draft is notably smaller than platform diameter. Platform floatability centre for its submerged part is located lower than centre of gravity of the platform. Said symmetric outer side of the hull includes at least three sections: water level section, cylindrical mid section and bottom section. Water level section features diameter decreasing downward along central axis. In operation in waters with ice, sea water level is located in water level section. Bottom section features diameter increasing downward along central axis. Metalling device serves for selective raise or descent of the platform so that water level is located nearby water level section or in mid section. Proposed method comprises actuating aforesaid metalling device for selective raise or descent of the platform depending on whether the platform is in water with ice or without it.

EFFECT: minor damages caused by ice.

9 cl, 4 dwg