Multipoint grouting method and apparatus therefor
US6874976B2 · kind B2 · utility
3Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2003 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Feb 21, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D3/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A common feature of the method and apparatus for multipoint grouting resides in using a multiple injection apparatus having a plurality of unit pumps in one plant, driven independently of each other and controlled by a centralized control device. The plurality of the unit pumps are connected through ducts to a plurality of injection pipes each having an outlet, inserted in a plurality of injection points in ground. By operations of the plurality of the unit pumps, ground improving material is injected from the plurality of the outlets into the plurality of the injection points in the ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.