Arched support structure
US6406220B1 · kind B1 · utility
6Cited by
7References
25Claims
0Family size
Inventor
Key dates
| Filing date | May 1, 2000 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | May 1, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D9/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A support structure and method for forming same for use in excavations such as underpasses, tunnels and the like for roads, rail or rivers. The support structure allows the utilization of the strength provided by using arch shaped sections and also minimizes the disruption caused to the soil surrounding the excavation thereby allowing existing road, rail or river services to continue to be used during excavation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.