FIELD: construction.
SUBSTANCE: platform comprises a site that rests with pillars against pontoons. A propeller made as a chain gear, on links of which there is a movable shell and partitions, being enclosed in a body, is fixed to a supporting pillar with the possibility of displacement along the pillar, rotation around it and vertical swinging. Change of movement direction is carried out by rotation of propellers or changeover from running to idle condition in side parts of the chain. Ice fields moving towards the platform are broken in front of pillars at the bottom by means of cutting or chipping with a cutter arranged under water. To create the chipping action, there are air reservoirs of variable volume installed under water as joined with the cutter.
EFFECT: increased maneuverability and reliability of the platform with minimum power losses for movement and possibility of autonomous displacement in environment of drifting marine ice, minimum power inputs for reliable retention of the platform in the specified area of the sea and with the specified orientation.
5 cl, 7 dwg
