| 摘要 |
A seagoing transportation system for a deck assembly 24 to form part of an offshore platform, and comprising two elongate pontoons 20 21 fixed together in aligned side by side relationship with a gap between them, in combination with a framework 22 arranged to act as a structural link between the pontoons so that the pontoons act together as a catamaran, and in which the same framework also acts as a support frame for the deck. The framework may form an integral part of the structure of the offshore platform when it is installed on a substructure 29. A hydraulic pull-down system to install the deck is also described. |
