| 摘要 |
The platform comprises a buoyant sub-structure 1 comprising a base 3 and a plurality of columns 4 upstanding from said base, a buoyant deck-hull 2 mounted on the columns 4 and means for ballasting and deballasting at least the base of said sub-structure 1.The platform further comprises means (12,13, Figs 3,6) for tangentially guiding said deck-hull 2 on said columns 4 during deployment of the platform into a predetermined configuration by ballasting of the sub-structure while the deck-hull 2 is floating and means (19,20,Figs 4,5) for locking said deck-hull 2 to the columns 4 in said predetermined configuration. |
