The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 05, 2023

Filed:

Jun. 24, 2019
Applicant:

Herrenknecht Ag, Schwanau, DE;

Inventor:

Jorg Riechers, Zell am Harmersbach, DE;

Assignee:

Herrenknecht AG, Schwanau, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 11/38 (2006.01); E21D 11/08 (2006.01);
U.S. Cl.
CPC ...
E21D 11/08 (2013.01); E21D 11/385 (2013.01);
Abstract

The invention relates to a tunnel lining composed of at least two concrete elements () each having at least one protective element () connected to the concrete element, wherein the protective element () has a protective portion which has a first side which faces the concrete element () and on which there is provided at least one connecting element () for producing a retaining connection between the protective portion and the concrete element (), wherein the protective portion consists of at least one plastic, wherein the protective element () has at least one protective element seal () which is connected to the protective portion (), wherein the connection to the protective portion () is gas-tight and liquid-tight, wherein a joint () is present between the at least two concrete elements () arranged to form the tunnel lining (), wherein the joint () is sealed in a gas-tight and liquid-tight manner with respect to the tunnel interior () by at least one protective element seal () having a sealing action (first sealing action), and wherein the tunnel lining () is provided with drainage (C) into the tunnel interior ().


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