Pile with low noise generation during driving
US9080301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2013 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Nov 27, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D13/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pile with a low effective Poisson's ratio is disclosed, which greatly reduces the sound coupling to the water and sediment or other ground when driving piles. In some embodiments the pile includes geometric features that reduce the radial amplitude of the compression wave generated during hammering by providing a space for circumferential expansion along the length of the pile. The geometric features may comprise slots and/or grooves. In an embodiment, a driving shoe has a perimeter that extends beyond the pile tube such that the sediment produces less of a binding force on the pile. The pile may be formed as a double-shelled pile with either or both shells having effective low Poisson's ratio properties. A bubble generating plenum may be attached to the shoe to further reduce friction during installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.