METHOD FOR CONSTRUCTING SEMI-SUBMERSIBLE STRUCTURES ON THE SEA AND THE SEMI-SUBMERSIBLE STRUCTURES CONSTRUCTED BY THE METHOD

摘要

The present invention relates to a marine drying method that can be dried directly on the sea without the need to launch a semi-submersible marine structure, such as a drilling ship in the sea after drying on the land, according to the present invention, the lower structure 11, and A semi-submersible offshore structure comprising a plurality of main pillars 12 and 13 standing on a lower structure and a top plate 20 supported by the main pillars is a method of drying at sea, which forms part of the top plate. Installing a top plate portion structure (21, 22) on each said main column; Tilting the main column to move the upper plate some structures toward the upper plate intermediate structure by sandwiching the upper plate intermediate structure 23 between the upper plate some structures installed on each of the main pillars and simultaneously deforming the lower structure Wow; Assembling the adjacent upper plate partial structure and the upper plate intermediate structure to each other to form the upper plate; There is provided a marine drying method of the semi-submersible marine structure, and dried semi-submersible marine structure comprising a.;Semi-submersible offshore structures, offshore construction methods, substructures, pontoons, columns, tops