| 摘要 |
The platform comprises a caisson (3) which rests on the seabed and supports a deck (2) by means of columns (4). The caisson incorporates a ring-wall for protection against icebergs which is formed from a peripheral double wall (6, 7) braced by partition walls (8) in a lattice structure of prisms. According to the invention, the outer wall (7) is smooth so as to prevent the formation of tangential forces upon impact by icebergs, and reinforcement means are provided in the thickness of this wall. These reinforcement means comprise gussets at the connection with the partition walls (8), and, if required, prestressing means.
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