Pile assembly for an offshore structure
US4696604A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1986 |
| Grant date | Sep 29, 1987 |
| Priority date | — |
| Expiry date | Aug 8, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0043
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pile assembly adapted for use in a compliant piled tower. A plurality of drive piles are driven into the ocean floor in a symetric array about a central, substantially vertical axis. A flex pile is secured to the upper end of each drive pile and extends upward to a preselected elevation above the ocean floor. The longitudinal axes of each drive pile flex pile pair are laterally offset from one another with the flex piles also being arranged in symetric array about the central axis. A tie member is provided to restrain the flex piles from lateral motion relative to one another. The tie member serves to balance the moments established by virtue of the eccentric axes of the flex pile drive pile pairs. The use of eccentric axes in the pile assemblies simplifies driving the drive piles, permits the drive piles to be placed relatively far from one another to minimize pile group effects and permits the flex pile to be designed without being constrained by driving considerations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.