PURPOSE: To simplify the remodeling of two tankers into floating docks, by carrying out such a method that after the periphery of the top deck of a side tank on each of the adjacent sides of two tankers arranged side by side, is cut, the cut-off top deck is lowered by about 1/3 of the depth of the tanker and rejointed to the hull of the tanker, the top deck of the center tank in each tanker is also cut off, and therefore a double bottom structure is obtained.
CONSTITUTION: After arranging two tankers 3 of similar types in a dock 15 side by side, the bow section of each tanker is cut and removed off at a position just before the transverse bulkhead of the front of the tank section. Further, the center tank top deck 15, 16 of each tanker 3 and aggregates 17 attached thereto are cut off along the peripheries thereof over a predetermined extent, and are lowered down to the hull bottom to be rejointed thereto so that a double bottom structure is obtained. Then, the periphery of the top deck 19, 20 of a side tank on each of the adjacent hull sides of both tankers 3 is cut off, and as well the hull side shell plating 21, 22, longitudinal bulkhead 9, 10, etc. below the top deck 19, 20 of each tanker is cut and removed off by about 1/3 of the depth of the tanker. Thereafter, the top deck 19, 20 is jointed to the cut-off section of the remaining hull of each tanker to obtain a floating dock 1, 2. With the use of both floating docks 1, 2 a large size marine structure such as, for example, a petroleum digging rig may be carried thereon.
| WO/2016/080272 | PLANING SHIP AND METHOD FOR MANUFACTURING SAME |
OODOI MICHIAKI
KAWANO MASAKAZU
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