The Analysis of Degradation Mechanism in Track Transition Zones using 3D Finite Element Model

January 1, 2015 in

Conference Paper


Author
Haoyu Wang

Co-authors
Valeri Markine, Ivan Shevtsov

Theme(s)


Conference
Second International Conference on Railway Technology: Research, Development and Maintenance
Year: 2014
Location: Corsica, France

Keywords
ballast, finite element methods, railway track, track transition zone, video gauge system tests

Link or Download
Not available

Abstract

Transition zones in railway tracks are locations with discontinuity in the vertical support, such as the ones at bridges, culverts and tunnels. In such locations, the vertical support of structures is varying, which causes discontinuity of stiffness, different settlement paces and different velocity of wave propagation. These changes will cause geometry difference in the transition zone, and consequentially increase of the dynamic forces. This can result in damages, especially in the ballast as this is one of the most vulnerable components of track structure.