The Research Of Lowest Radius To High-Speed Railways With Ballastless Tracks

The Lowest Radius is one of the most important line parameters during Railway construction, it will influence lots of factors, such as security, environment and investment. At present, there is less research to it, and I analysed it in depth in the text, which will provide some reference in High-Speed Railway construction.In this paper, the background, situation and significance for High-Speed Railway in the world was detailed, such as in Japan, in France, in Germany and in China. Compared the Ballast Track with Ballastless Track and made an analysis to them , then studied the line parameters of High-Speed Railways in the world.To analyse significance of Lowest Radius in High-Speed Railway construction and various factors which influenced it in different transportation system, such as speed, ultrahigh. According to the line parameters of High-Speed Railways in the world, computed the Lowest Radius, got the suggested datas, which were compared with the Lowest Radius in High-Speed Railway with Ballast Track.. And pointed out the lower datas can be used in it.To analyse load situation in the system of track, for example, vertical loads, lateral loads and so on and verify the rationality of suggested datas, at the same time, wrote a program of computation for it.On the basis of previous work, introduced several primary Ballastless Track models and made a model of Plank Track which was analysed by Ansys, And computed displacement of Plank Track structure, drew the displacement graphs, which verified the rationality of suggested datas again.