Lining element for a drilled tunnel

Details Lining element for a drilled tunnel Lining element for a drilled tunnel

E - Fixed Constructions

21

D

E21D 11/08 (2006.01)

Patent

CA 2261253

The invention relates to a concrete lining element for a drilled tunnel, which element is formed as a ring segment and is internally reinforced, and a plurality of which ring segments can be joined together to form a ring, and a plurality of rings can be joined to form the lining for the drilled tunnel and wherein, in order to couple adjacent rings at the intermediate ring joint, each element is provided at one side bordering the ring joint with at least one projection, and at the opposed side with a corresponding recess to admit the projection of an adjacent element. The height of the projection, respectively the depth of the recess on the respective side is between 30 and 60 mm, and the projection, respectively the recess at the transition from its top, respectively its bottom to its side walls, possesses rounded corners, having a radius of rounding of between 5 and 50 mm.

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