TEMPORARY SLEEPER FOR SHIELD TUNNEL WORK

摘要

PROBLEM TO BE SOLVED: To provide a temporary sleeper for shield tunnel work, applicable to either of an iron segment or a RC segment, usable for the segments having small-to-large cross sections, and also easily removable and reusable after being used.;SOLUTION: The temporary sleeper for shield tunnel work includes a sleeper plate arranged to arcuately cut across the inner face of the segment connected thereto in a horizontal state, and supporting blocks on the upper faces of which the sleeper plate is mounted and supported at both right and left ends and which are arranged on the inner face of the segment. The supporting blocks include supporting brackets which are lined parallel in a vertical attitude and on the upper faces of which the sleeper plate is mounted, rail holding parts formed at the outside ends of the upper faces of the brackets to hold the bottom parts of rails, round steel bars mounted between the parallel supporting brackets for joining the supporting brackets to each other, and rail fixtures (standardized or separately manufactured rail retainers) mounted on the sleeper plate, respectively.;COPYRIGHT: (C)2014,JPO&INPIT