HIGH-SPEED RAILWAY LINES ON SOFT GROUND: DYNAMIC BEHAVIOUR AT CRITICAL TRAIN SPEED

doi:10.1006/jsvi.1999.2647

Journal of Sound and Vibration

Volume 231, Issue 3, 30 March 2000, Pages 689-701

https://doi.org/10.1006/jsvi.1999.2647 Get rights and content

Abstract

Results from instrumented test runs with a high-speed train on a soft soil site in Sweden are presented. It is shown that large dynamic amplifications appear in the dynamic response of the rail/embankment/ground system as the train speed approaches an apparently critical value. The measured dynamic response is analyzed in detail, and it is shown that the critical speed is controlled by the minimum phase velocity of the first Rayleigh mode of the soil and embankment profile at the site. Moreover, it is shown that the critical speed and the amount of dynamic amplification also depend on a coincidence between characteristic wavelengths for the site and the distances between bogies and axles in the train. The displacement response is found to consist of a speed-independent portion in quasi-static equilibrium with the train loads and a dynamic portion representing freely propagating Rayleigh waves. An efficient computer code for the prediction of ground response to high-speed trains has been developed and its ability to reproduce the observed behaviour is demonstrated.

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Regular ArticleHIGH-SPEED RAILWAY LINES ON SOFT GROUND: DYNAMIC BEHAVIOUR AT CRITICAL TRAIN SPEED

Abstract

Applied Acoustics

Journal of Sound and Vibration

Wave Motion

Steady state displacements of a beam on an elastic half-space due to uniformly moving constant load

European Journal of Mechanics, A/Solids

Dynamic behaviour of railway track

Post-Doctoral Course on High Speed Track, Technische Universitet Delf

Notes on low embankments for high-speed lines on compressible subsoil

PAO Course “High Speed Track”

Effects of track properties on ground vibrations generated by high-speed trains

ACOUSTICA acta acostaica

A fast algorithm for soil dynamics calculation by wavelet decomposition

Archive of Applied Mechanics

Ground vibration boom from high speed train: prediction and reality

The Acoustic Bulletin

Methods of analysis of statical and dynamical stresses in rail

Proceedings of the Second International Congress on Applied Mechanics

Regular Article
HIGH-SPEED RAILWAY LINES ON SOFT GROUND: DYNAMIC BEHAVIOUR AT CRITICAL TRAIN SPEED