Sembawang Yard To Invest In Construction Of New Floating Dock

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As part of an extensive expansion program, the Governmentowned Sembawang Shipyard in S i n g a p o r e recently began construction of a new floating dock.

Scheduled for completion by mid- 1981, the floating dock will be the largest in the East, and able to accommodate ships up to 150,000 deadweight tons.

Major international shipyards were invited to tender for its design and construction, and the contract was awarded to Kawasaki Heavy Industries Ltd. of Japan on a competitive quotation delivery basis.

The total investment involved in the new dock, along with all the necessary back-up facilities, is Sing $70 million. The construction of the dock will represent about two-thirds of the total. However, when the dock becomes fully operational, Sembawang expects it to increase turnover by about a third on present levels. The dock will be of one-piece construction, with continuous and inseparable bottom caisson and two side walls fully closed. The end platforms are to be fitted at fore and aft of the dock, and each side wall to consist of service spaces at upper part and ballast tanks at lower part divided by a safety deck. The principal dimensions are 290 meters length overall (about 951.5 feet) ; 270 meters length over caisson (885.8 feet) ; 51 meters width between inner walls (167.3 feet), and 8.5 meters depth over keel blocks (27.9 feet). The lifting time of the dock will be approximately two hours.

Special features include remote control of the pumping/ballasting operations, sonic system for guidance of vessel entering dock, and a ring main for automatic highpressure freshwater cleaning of a hull. In addition, the dock will be equipped with four units of highly versatile dock-arms, each with a maximum payload of 400 kg. (880 pounds). Two t r a v e l i n g dock cranes of 50-ton and 15-ton capacities will be installed, together with the inclusion of the haulingin system.

In conjunction with the new floating dock project, the existing access ramp, designed and constructed for standard 20-ton truck loading, pedestrians and impact load, wilL be extended to reach the new dock. This allows easier access for supplies and services to the new dock. At the same time, the new dock will also be equipped with ship-repair facilities for ships berthed along its starboard side.

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