Passive grout seal
US9970171B2 · kind B2 · utility
0Cited by
7References
13Claims
0Family size
Inventor
Key dates
| Filing date | May 8, 2017 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | May 8, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D2300/0051
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A passive annular grout seal assembly is disclosed for sealing an annular opening between a driven pile and a skirt pile sleeve for an offshore platform. The annular seals are located at the bottom of the pile sleeves near sea floor and automatically activated when piles are inserted and driven through the pile sleeves without any active operational procedure during offshore piling. The seal configuration fully utilizes the seal height, the grout column height and the density difference between grout and sea water to produce enhanced sealing capacity against the column of grout above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.