LONGITUDINAL BEHAVIOUR OF RAIL EMBEDDED IN ELASTIC MATERIAL

Abstract

The longitudinal behaviour of a rail embedded in elastic material is different from that laid on ballast track, studied in the professional literature. The longitudinal coefficient of elasticity of the built in elastic embedding material could be determined unambiguously only by testing. On that basis the dilatation behaviour of a rail can be represented by a discrete model allowing to determine the internal forces raised in the rail and the displacement of its cross sections as well as the length of the moving section.