MARINE ICE-RESISTANT PLATFORM Russian patent published in 2000 - IPC

FIELD: hydraulic construction engineering; construction of marine platforms of shelves of freezing seas. SUBSTANCE: marine ice-resistant platform consists of base with two ice-resistant supports rising above water. Tackle blocks are arranged on ice-resistant supports on either side; they are directed towards each other. Upper structure is made as craft or is delivered by transport pontoons. Tackle blocks arranged on deck of upper structure correspond to tackle blocks on outriggers. Located on deck of upper structure near tackle blocks are winches whose ropes are used for connecting the tackle blocks of outriggers with those of upper structure. After mounting the marine ice-resistant platform and securing it to bottom by means of piles (if necessary), upper structure is towed and is placed between ice-resistant supports. Ropes of winches are passed into tackle blocks of outriggers and upper structure by means of ropes- messengers and end of rope is secured as required. During operation of winches, raising of upper structure is started and is continued till its deck is at one level with deck of ice-resistant supports. EFFECT: low cost of construction and erection jobs due to avoidance of use of floating cranes. 3 cl, 6 dwg