PROCESS OF ERECTION OF DEEP-SEA PLATFORM Russian patent published in 2004 - IPC

FIELD: exploitation of underwater deposits of mineral resources. SUBSTANCE: invention refers mainly to extraction of liquid and gaseous mineral wealth, to construction of technological complexes, which ensure conducting of operations on deep-sea shelf of open sea. In process of erection of deep-sea platform bottom fastening members are installed in point of extraction of mineral resources, half-submerged base of platform is shipped to point of extraction of mineral resources and base of platform is linked to bottom fastening members with the help of proper load-bearing elements. Upper deck with technological equipment is mounted on base of platform. Bottom fastening members come in the form of cemented piles, holes for them being drilled in advance by means of proper technological equipment. Load-bearing elements are made stiff and are connected to cemented piles and to added underwater pontoon with ballast weight to form rigid truss, for instance, in the form of truncated pyramid which has above-mentioned underwater pontoon in the capacity of upper base. Underwater pontoon is employed as load-bearing element for half-submerged base of platform. EFFECT: increased economic efficiency and operational safety of deep-sea platform thanks to its structural stiffness and small mass and size characteristics. 8 cl, 4 dwg