INSTALLATION METHOD OF PUMP TOWERS IN 2-ROW TANK TYPE FLOATING FACILITIES

摘要

PURPOSE: A method for installing a pump tower of a tank-type floating offshore structure arranged in a two rows is provided to prevent construction period from being increased when a pump tower and an upper structure are respectively installed and to flexibly cope with plans for arranging and installing the upper structure that ship owners suggest. CONSTITUTION: A method for installing a pump tower of a tank-type floating offshore structure arranged in a two rows is as follows. A hull of a tank-type floating offshore structure arranged in a two rows is anchored in parallel with an inner wall and a tank facility and a pump tower are installed in an inner wall side storage tank(S11). The hull is anchored at the inner wall in a state of being reversely turned(S11a). While the tank facility and the pump tower are installed in the inner wall side storage tank, an upper structure is installed in the upper part of a sea side storage tank by a floating crane(S12). The hull is anchored in the inner wall by returning to an original direction and the upper structure is installed in the upper part of the sea side storage tank by the floating crane(S13).