Construction element for creating a tunnel, tunnel comprising such an element and methods for constructing such an element and such a tunnel
US10519772B2 · kind B2 · utility
0Cited by
9References
10Claims
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Key dates
| Filing date | Apr 4, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Apr 4, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D11/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Construction element for creating a tunnel, including an incompressible concrete first layer and a compressible second layer securedly united to the first layer to form a monoblock prefabricated construction element to be integrated in a section of the tunnel, the second layer including a material comprising granulates aggregated by a binder, and cavities sunk into the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.