Construction element for creating a tunnel, tunnel comprising such an element and methods for constructing such an element and such a tunnel
US10774640B2 · kind B2 · utility
2Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 2015 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | May 20, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D11/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Construction element for creating a tunnel, including a first incompressible layer of concrete and a second compressible layer securely fastened to the first layer to form a monoblock prefabricated construction element configured to be integrated in a section of the tunnel during creation of the tunnel, the second layer including a plurality of devices each having a solid body integrating an empty space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.