ICE-RESISTANT SEA PLATFORM AND METHOD FOR ITS ERECTION Russian patent published in 1999 - IPC

FIELD: construction engineering. SUBSTANCE: ice-resistant platform is stationary and it is intended for erection on shallow part of sea shelf. Platform has ice-resistant caisson with bottom plate and upper plate which rigidly interconnect internal wall and external wall having ice protecting members. Walls are installed with clearance relative to each other. Also provided is superstructure installed on upper supporting plate. Superstructure is made up of functional units. Installed inside caisson are reservoirs for liquids and products recovered from wells. In realizing method of erection, platform is provided with auxiliary ice-breaking lip. Upper supporting plate is of less surface area as compared with surface area of bottom plate. Ice-breaking lip is installed over external perimeter of superstructure and is connected with external part of functional units and upper supporting plate. Protective members are made in the form of segments of cylinders of revolution with tapered profile in upper part. Aforesaid embodiment of ice-resistant sea platform allows for reducing ice loads together with increasing stability of platform. EFFECT: higher efficiency. 6 cl, 2 dwg