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Offshore platform structure intended to be installed in arctic waters, subjected to drifting icebergs

  • US 4,470,725 A
  • Filed: 03/01/1982
  • Issued: 09/11/1984
  • Est. Priority Date: 03/01/1982
  • Status: Expired due to Fees
First Claim
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1. An offshore platform structure for installation on a sea bed in waters where impact from drifting icebergs may occur, said platform structure comprising:

  • a substructure having an upper portion and a lower portion, said lower portion adapted for support by the sea bed;

    intermediate walls of said substructure located between said upper portion and said lower portion;

    a superstructure having an end rigidly fixed to said upper portion of the substructure, said superstructure extending perpendicular to said upper portion of said substructure, and said superstructure having a smaller lateral dimension than said substructure;

    a deck supported by said superstructure, said deck being supported above sea level; and

    a fender structure rigidly supported at a lower end of said fender structure by said substructure, said fender structure extending circumferentially around the superstructure, and said fender structure further being in spaced relation from said superstructure and said fender structure being structurally separated from said superstructure along at least a major portion of a length of said fender structure.

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