6533b7d4fe1ef96bd12633c3

RESEARCH PRODUCT

A Dynamic Model of Ballasted Rail Track with Bituminous Sub-Ballast Layer

G. Di MinoSilvia NotoCinzia MaggioreM. Di Liberto

subject

BallastEngineeringBituminous sub-ballast layer ballasted rail track rail track model vehicle-track interactionMathematical modelbusiness.industryBallasted rail trackRail track modelStructural engineeringContinuous beamTrack (rail transport)Vehicle-track interactionVibrationAsphaltService lifeSettore ICAR/04 - Strade Ferrovie Ed AeroportiGeneral Materials ScienceElasticity (economics)businessBituminous sub-ballast layer

description

AbstractThe bituminous sub-ballast layer within the ballasted rail track allows some mechanical and environmental advantages. An analytical model of a ballasted rail track with sub-ballast layer has been proposed by considering the rail as viscous-elastic continuous beam discretely supported, at four levels of elasticity.The model was used to compare the mechanical performance of both ballasted track with and without bituminous sub-ballast layer. The results confirmed that the bituminous sub-ballast layer reduces the dynamic forces on the ground and achieves the technical objectives as reduction of ground borne vibrations and increase of the design life of the rail track.

yearjournalcountryeditionlanguage
2012-10-01Procedia - Social and Behavioral Sciences
https://doi.org/10.1016/j.sbspro.2012.09.888