SUPERSTRUCTURE OF A BALLAST-FREE FIXED TRACK AND A CONSTRUCTION METHOD THEREOF, USED FOR HIGH-SPEED TRAFFIC

摘要

PURPOSE: A superstructure of a ballast-free fixed track and a construction method thereof are provided to enable a restriction key to effectively block lateral shift between a track and a base slab without using sealing material in a restriction key.;CONSTITUTION: A superstructure(2) of a ballast-free fixed track comprises a concrete base slab(4), a track slab(8), and a pair of traveling rails(10). The concrete base slab is placed on the ground. The track slab is installed on the base slab. A pair of traveling rails are fixed to a tie plate(12). The tie plate is regularly positioned in a Z-direction at regular intervals.;COPYRIGHT KIPO 2010