Pile driving and pile removing method
US5213166A · kind A · utility
5Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1992 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Feb 10, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D11/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pile driving and pile removing method comprises the step of causing a water-in-oil type water swellable polymer particle emulsion to be present on the pile surface or in the vicinity thereof during driving or extraction. The presence of the emulsion reduces the frictional resistance between the pile and the ground, enabling smooth and easy driving and removing of the pile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.