Ice berm for use as a foundation for an arctic offshore structure
US4666342A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1986 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Jun 30, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D27/52
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Arctic berm for offshore structure foundation. It is made of several ballasted ice slabs stacked one over the other and welded together to form a solid mass. The berm is obtained by delimiting a uniform ice thickness area over landfast ice, area made up of a central rectangle and arms radiating from the central rectangle, each arm defining successive rectangles. After all rectangles are ballasted sufficiently for them to sink when cut as slabs, one rectangle is cut into a first slab, is allowed to sink slightly and the rectangle next to it in one of the arms is cut and moved over the first slabs to be welded to it into a solid mass. The remaining rectangles of the arms are, in turn, likewise cut and moved over the already piled slabs and welded to them until the berm is finally obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.