Tunnel lining composed of at least two concrete elements
US11834950B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2019 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Apr 23, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D11/385
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a tunnel lining composed of at least two concrete elements (10) each having at least one protective element (20) connected to the concrete element, wherein the protective element (20) has a protective portion which has a first side which faces the concrete element (10) and on which there is provided at least one connecting element (17) for producing a retaining connection between the protective portion and the concrete element (10), wherein the protective portion consists of at least one plastic, wherein the protective element (20) has at least one protective element seal (30) which is connected to the protective portion (20), wherein the connection to the protective portion (20) is gas-tight and liquid-tight, wherein a joint (40) is present between the at least two concrete elements (10) arranged to form the tunnel lining (300), wherein the joint (40) is sealed in a gas-tight and liquid-tight manner with respect to the tunnel interior (100) by at least one protective element seal (30) having a sealing action (first sealing action), and wherein the tunnel lining (300) is provided with drainage (C) into the tunnel interior (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.