Tubbing, tubbing ring and tunnel works

Abstract

The invention relates to a tubbing ( 2 ) for a tubbing ring ( 1 ) used in underground tunnel works in which a front tubbing face ( 4 ) and a rear tubbing face ( 5 ) are provided. At least one tubbing face ( 4, 5 ) is provided in the shape of a spherical shell.

1 . Tubbing ( 2 ) for a tubbing ring ( 1 ) used in underground tunnel works, 
 in which a front tubbing face ( 4 ) and a rear tubbing face ( 5 ) are provided,    and in which at least one tubbing face ( 4 ,  5 ) is provided in the shape of a spherical shell segment.    
     
     
         2 . Tubbing according to  claim 1 , wherein both the front tubbing face ( 4 ) and the rear tubbing face ( 5 ) are configured in the shape of a spherical shell segment.  
     
     
         3 . Tubbing according to  claim 1 , wherein the tubbing has a basic body in the shape of a cylinder mantle segment.  
     
     
         4 . Tubbing ring made up of a plurality of tubbings ( 2 ) according to  claim 1 , 
 in which a front tubbing ring face ( 6 ) and a rear tubbing ring face ( 7 ) are provided,    and in which at least one tubbing ring face ( 6 ,  7 ) is configured in the shape of a spherical shell segment.    
     
     
         5 . Tubbing ring according to  claim 4 , wherein both the front tubbing ring face ( 6 ) and the rear tubing ring face ( 7 ) are configured in the shape of a spherical shell segment.  
     
     
         6 . Tubbing ring according to  claim 4 , wherein the center point (M) of the sphere assigned to the tubbing ring face ( 6 ,  7 ) that has the shape of a spherical shell segment is arranged on the center axis (m) of the tubbing ring ( 1 ).  
     
     
         7 . Tubbing ring according to  claim 4 , wherein five to nine, preferably six to eight tubbings ( 2 ) are combined to form a tubbing ring ( 1 ).  
     
     
         8 . Tunnel works having a plurality of tubbing rings ( 1 ) according to  claim 4 , arranged one behind the other in the lengthwise direction of the tunnel, 
 in which each tubbing ring ( 1 ) has a front tubbing ring face ( 6 ) in the shape of a spherical shell segment as well as a rear tubbing ring face ( 7 ) in the shape of a spherical shell segment,    and in which the front tubbing ring face ( 6 ) in the shape of a spherical shell segment of a first tubbing ring ( 1 ) is joined to the rear tubbing ring face ( 7 ) in the shape of a spherical shell segment of a second, adjacent tubbing ring ( 1 ), with a positive lock.