MARINE GRAVITY-PILED PLATFORM AND METHOD OF ITS INSTALLATION ON SEA BOTTOM Russian patent published in 2013 - IPC E02B17/00 

FIELD: construction.

SUBSTANCE: platform comprises a base with a superstructure, cavities in a lower part of the base and piles, the body of which in the upper part is arranged in the form of a tight chamber, and in the lower one - in the form of a nozzle with openings open at the end. Piles have alternate section with highest value of its area for the tight chamber. In process of platform transportation the piles are arranged in cavities made in the form of containers with openings in the bottom part. The area of cross section of openings is more than the area of cross section of the nozzle, but less than the area of the cross section of a tight chamber. Containers are hydraulically connected with a source of pressure of a working filler. The method to install the platform onto the bottom provides for installation of piles into containers arranged in the platform base, submersion of the platform with piles put into the vertical position under its base by acceptance of ballast by the platform, jacking of piles into soil and installation of the platform base onto the bottom. At the same time piles are installed into containers under stationary conditions prior to transportation of the platform to the point. After arrival to the point, piles are brought to the platform base, and their heads are anchored in containers by means of working filler injection into containers until they are filled. Filler hardening is expected. Afterwards the platform is ballasted, and its base is installed onto the bottom.

EFFECT: increased stability of a platform, simplification of its transportation, installation onto a sea bottom and service.

19 cl, 5 dwg