Protective element, concrete element, and method for producing a concrete element

Abstract

The invention relates to a protective element for connecting to a concrete element ( 10 ) of a tunnel lining and having at least one protective portion ( 21, 22, 23 ) which has a side which faces the concrete element ( 10 ) and on which is provided at least one connecting element ( 24, 25, 26, 27, 28 ) for producing a durable connection of the protective portion ( 21, 22, 23 ) to the concrete element ( 10 ), wherein the protective portion ( 21, 22, 23 ) has a base portion ( 21 ) and/or a wall portion ( 22, 23 ) and at least one region consisting of at least one plastics material, and the protective element has at least one seal ( 30 ) which is connected in a single piece to the protective portion ( 21, 22, 23 ), wherein the connection is gas-tight and liquid-tight, and the single-piece connection of the seal to the protective portion is produced by injection moulding with the at least one plastics material and thereby forms a first portion of the base portion ( 21 ) and/or of the wall portion ( 22, 23 ) of the protective portion ( 21, 22, 23 ). With respect to the protective element, the base portion ( 21 ) and/or the wall portion ( 22, 23 ) of the protective portion ( 21, 22, 23 ) have/has at least one second portion, wherein the second portion has an areal extent, and the second portion is connected to the first portion by injection moulding.

1 . Protective element for connecting to a concrete element of a tunnel lining and including at least one protective portion with a side facing the concrete element and at least one connecting element disposed on the facing side configured to produce a durable connection of the protective portion to the concrete element, wherein the protective portion comprises at least one of a base portion and a wall portion and at least one region consisting of at least one plastics material, and the protective element comprises at least one seal connected in a single piece to the protective portion, wherein the connection is gas-tight and liquid-tight, and the single-piece connection of the seal to the protective portion is produced by injection moulding with the at least one plastics material and thereby forms a first portion of at least one of the base portion and of the wall portion of the protective portion wherein at least one of the base portion and the wall portion of the protective portion comprises at least one second portion, wherein the second portion has an areal extent, and the second portion is connected to the first portion by injection moulding. 
     
     
         2 . Protective element according to  claim 1 , wherein the second portion is at least one of a film, a plate or a sheet connected to connecting elements, or a further plastics material. 
     
     
         3 . Protective element according to  claim 1  wherein the base portion of the protective portion is formed from the second portion, and at least one of the connection between the first and second portion is a butt joint, or the first portion at least partially encloses the second portion. 
     
     
         4 . Protective element according to  claim 1  wherein the connecting element is at least one of a honeycomb structure, a crosspiece, a pin or a sheet-like element, with openings. 
     
     
         5 . Protective element according to  claim 1  wherein the protective portion is connected in a single piece to the at least one connecting element, wherein the single-piece connection is produced by injection moulding the plastics material. 
     
     
         6 . Protective element according to  claim 1  wherein the injection-mouldable plastics material is at least one of a polydicyclopentadiene (pDCPD), resistant to high temperatures, or a resin, with glass fibres introduced. 
     
     
         7 . Protective element according to  claim 1  wherein the plastics material of the sheet-like element is a thermoplastic, preferably PE. 
     
     
         8 . Concrete element for producing a tunnel lining comprising a convex outer surface and an inner surface located opposite, wherein a protective element for connecting to the concrete element including at least one protective portion with a side facing the concrete element and at least one connecting element disposed on the facing side configured to produce a durable connection of the protective portion to the concrete element, wherein the protective portion comprises at least one of a base portion and a wall portion and at least one region consisting of at least one plastics material, and the protective element comprises at least one seal connected in a single piece to the protective portion, wherein the connection is gas-tight and liquid-tight, and the single-piece connection of the seal to the protective portion is produced by injection moulding with the at least one plastics material and thereby forms a first portion of at least one of the base portion and of the wall portion of the protective portion wherein at least one of the base portion and the wall portion of the protective portion comprises at least one second portion, wherein the second portion has an areal extent, and the second portion is connected to the first portion by injection moulding, wherein said protective element is connected to the inner surface via at least one connecting element. 
     
     
         9 . (canceled)