FIELD: transport.
SUBSTANCE: invention relates to floating offshore structures, particularly, to spar-platform offloading, launching and canal towing. Invention allows large-diameter spar-platform offloading and launching using existing heavy-freight ships. U-like reservoir is used for artificial increase in length and buoyancy to help lift the platform from track onto ground in offloading. U-like reservoir ensures required buoyancy and waterline area for launching spar-platform from said ship. After ship sailing, U-like reservoir is displaced to under transition frame extending from spar-platform stiff reservoir top part. U-like reservoir is ballasted upward for lifting stiff reservoir and reducing its draft. At reduced draft, stiff reservoir strip ends do not touch canal bottom. This allows towing spar-platform along berth industrial site for extra processing.
EFFECT: simple and reliable offloading and launching.
10 cl, 14 dwg
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