Soil compaction system
US4080792A · kind A · utility
3Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1977 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Jun 20, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D3/054
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of compacting granular material with continuously vibrating a hollow pipe. The vibrating pipe is lowered into the material to be compacted with a crane type apparatus, maintained in a lowered position for a period of time and then withdrawn from the material. The vibration imparted to the material is increased by a number of annular rings located along the outer surface of the vibrating pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.