PERFORMANCE TEST FOR SAFETY OF SPLIT PC SLEEPERS

초록

The turnout and switch machine are the only movable components and it is known that they are the most unstable equipments structurally in the railway system. There has been a remarkable development in the turnout system over the last ten and more years in order to speed up the train in the conventional lines. From the structural point of view, the turnout system must guarantee the train to operate in safe. The turnout system is made up of a lot of components and must be assembled carefully and exactly. Because there is not enough time for the installation of a turnout, a turnout is pre-assembled at a factory by using the split PC sleepers and it is transported to the construction site recently in advanced countries. The split PC sleeper was introduced for the first time to improve the performance of a turnout in Korea. In this paper, the performance test of split PC sleepers was carried out indoors and the safety of split PC sleepers was estimated. The worst ballast condition such as STT(Switch Tie Tamper) or MTT(Multiple Tie Tamper) was considered in the performance test of split PC sleepers.