| 摘要 |
PROBLEM TO BE SOLVED: To provide a thrust corbel, workability of which is made better than conventional devices and in which a great deal of hands and time are not required for mounting and demounting works, and the execution method of a flexible joint made more efficient than conventional devices. SOLUTION: In the thrust corbel 1, a wedge type third member 13, in which the minimum value L1 of size in the longitudinal direction of a tunnel is set in 25-40% of the overall length L2 of the thrust corbel and the 0.6-1.5 times of the mounting size L3 of a primary cutoff rubber built in an interrupting section installed on its midway to the tunnel, is interposed between the first and second members 11, 12 set up before and behind the interrupting section. In the execution method, the primary cutoff rubber is constructed to the interior section of a space after the third member 13 is removed through the space.
|
