FIELD: hydraulic engineering. SUBSTANCE: device for temporary holding of sea drilling rig on arctic shelf in conditions of moving ice fields has piles located in support column. Each pile over its internal surface is provided with hollow stiffening ribs, and cooling agent is delivered through part of them, washing-out liquid is delivered through other ribs, and flushing liquid is brought through third ones. EFFECT: high efficiency. 1 cl, 8 dwg
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