| 摘要 |
1521947 Offshore production platforms COMPAGNIE GENERALE POUR LES DEVELOPPEMENTS OPERATIONNELS DES RICHESSES SOUS-MARINES C G DORIS 22 March 1977 [22 March 1976] 12092/77 Heading E1H The buoyancy of an offshore structure 4, Fig. 2 is increased to facilitate towing out to the site, by making it water tight over at least part of its height by means of removable elements 9. As described, the elements are plates Fig. 3 with two adjacent grooved edges. They may be arranged in a circle round vertical supports 6, Fig. 5, or between the supports Fig. 6. Alternatively, staves 14, Fig. 7 may be used. These may have interlocking edges, Figs. 9, 10 (not shown). Figs. 11, 12, 13, 16, 17 (not shown) illustrate other embodiments. For Figures see next column |
