Gravity base structure of an offshore platform resisting to icebergs
US5186581A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1990 |
| Grant date | Feb 16, 1993 |
| Priority date | — |
| Expiry date | Dec 18, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0069
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The structure comprises a concrete monolithic caisson (3) consisting of a top slab (5) and a bottom slab (5') resting on a seabed. Two concentric peripheral walls (6, 7), an inner and an outer respectively, are designed to withstand the impacts of icebergs. These two walls (6, 7) extend substantially vertically between the slabs (5, 5') and are rigidly connected with them. Vertical partitions are arranged between the two walls so as to connect them in a lattice structure. Vertical defensive elements (8, 9) are disposed over at least a part of the outer periphery of the caisson. The defensive elements (8, 9) are integral with the outer wall of the caisson (3). These caissons are intended for a platform structure located in Arctic regions for production in a hydrocarbon field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.