A MARINE STRUCTURE, A METHOD OF CONSTRUCTION THEREOF AND A INSTALLATION SHIP THEREFOR

摘要

The present invention relates to a method to construct a fixated-type marine structure including a lower structure fixated on a seabed, and an upper structure fixated on top of the lower structure. According to the present invention, the method comprises: settling the lower structure on the seabed by lowering under a sea surface using a crane mounted on an installation ship; fixating the lower structure on the seabed by pressing upper portions of the legs of the lower structure using a jacking unit extended downwards in a vertical direction installed in a lower portion of the installation ship; and installing an upper structure to connect a lower end of an upper leg of the upper structure to an upper end of a lower leg.