FIELD: offshore platforms installed in open sea and operating under heavy ice conditions. SUBSTANCE: platform has base on which protective structure is mounted. Protective structure consists of interconnected lower conical part and upper cylindrical part. Protective structure is hollow accommodating piles separate from structure and from one another. Installed on piles is platform located above upper part of protective structure and not touching it, and drilling derrick is located on the platform. Protective structure with piles preliminarily mounted on it is transported in vertical position, lowered to bottom, and piles are driven into bottom, and links are provided between piles and between piles and protective structure. Then, platform for drilling derrick is installed from atop on piles. EFFECT: higher efficiency. 5 cl, 4 dwg
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