EP 0572371 B1 19951108 - Tunnel lining in the form of tubbings.
Title (en)
Tunnel lining in the form of tubbings.
Title (de)
Tunnelausbau in Tübbingbauweise.
Title (fr)
Revêtement de tunnel en forme de cuvelage.
Publication
Application
Priority
AT 112392 A 19920529
Abstract (en)
[origin: EP0572371A1] A tunnel lining in the form of tubbings consists of tubbing segments (2 - 7) complementing one another to form one tubbing ring (1) each and trapeziform, trapezoidal or rhombic in basic shape. The tubbing segments (2 - 7) are held together at the end faces (16, 17) determining the ring seam after installation via pin-like push-in connections (12, 13) permitting restricted transmission of shearing forces and along the sloping longitudinal seams via tongue-and-groove connections consisting of continuous longitudinal grooves (9) in the sloping longitudinal sides (8) and inserted tongues (10), in which arrangement the segments have zones which can be compressed even in the peripheral direction of the tubbing ring, and/or tongues (10) designed to be compressible are provided, which keep the segments at a distance apart in the unloaded state while forming longitudinal seams and can be compressed under the rock pressure while the seam width (11) is reduced. In order to obtain satisfactory guidance of the segments during the reduction in diameter of the tubbing ring, the tubbing segments (2 - 7) are connected at the end faces (16, 17) to the tubbing segment or tubbing segments adjacent in the next tubbing ring (1) via at least two pins (12, 13) each, of which only one (12) forms a fixed bearing for the segment, but the other pin or pins (13), at least at one of the segments connected by them, is or are displaceable to a limited extent in an elongated hole (15) in the adjusting direction which is possible during a reduction in diameter of the tubbing ring. <IMAGE>
IPC 1-7
IPC 8 full level
E21D 11/04 (2006.01); E21D 11/08 (2006.01); E21D 11/24 (2006.01)
CPC (source: EP US)
E21D 11/083 (2013.01 - EP US)
Designated contracting state (EPC)
CH IT LI
DOCDB simple family (publication)
EP 0572371 A1 19931201; EP 0572371 B1 19951108; AT 397983 B 19940825; AT A112392 A 19931215; JP H06137093 A 19940517; US 5346332 A 19940913
DOCDB simple family (application)
EP 93890106 A 19930521; AT 112392 A 19920529; JP 12882993 A 19930531; US 6896693 A 19930528