Effect of embankment conditions on ground vibrations induced by high-speed lines

Bryan Olivier, Georges Kouroussis, David P. Connolly, Pedro Alves Costa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Over the years, the rapid growth in railway infrastructure has led to numerous environmental challenges. One such significant issue is ground-borne vibration induced by high-speed lines. Although the effect of a train travelling on at-grade line was intensively studied in the past, research of the effect of embankment is scarce. This paper presents a numerical prediction of the ground vibration levels with applications on high-speed rail infrastructure. First experimental tests are studied: the effect of embankment on the generated railway ground vibrations is analysed using two different sites presenting the same soil configuration but with a different track earthworks profile (one embankment and one at-grade). In-situ tests were performed to determine soil dynamic parameters by using non-intrusive methods and to collect surface vibration in the three directions due to several train passing. The latter are of sufficient interest so as to be used to validate the proposed prediction model based on a finite element approach and suitable for complex geometries. This study is completed by a numerical analysis in order to better discern and understand the parameters and configurations that influence ground surface motion. It was found that the embankment case causes lower peak particle velocities than the at-grade case. Particular attention was paid to the softness of the embankment compared to the rest of the soil, showing that the embankment acts as a waveguide thus trapping energy within it.

Original languageEnglish
Title of host publicationProceedings of the 23rd International Congress on Sound and Vibration
EditorsKonstantinos Vogiatzis, Georges Kouroussis, Malcolm Crocker, Marek Pawelczyk
PublisherInternational Institute of Acoustics and Vibrations
Number of pages8
ISBN (Electronic)9789609922623
Publication statusPublished - 2016
Event23rd International Congress on Sound and Vibration 2016 - Athens, Greece
Duration: 10 Jul 201614 Jul 2016

Publication series

NameProceedings of the International Congress on Sound and Vibration
PublisherInternational Institute of Acoustics and Vibration
ISSN (Print)2329-3675

Conference

Conference23rd International Congress on Sound and Vibration 2016
CountryGreece
CityAthens
Period10/07/1614/07/16

ASJC Scopus subject areas

  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality
  • Acoustics and Ultrasonics

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  • Cite this

    Olivier, B., Kouroussis, G., Connolly, D. P., & Costa, P. A. (2016). Effect of embankment conditions on ground vibrations induced by high-speed lines. In K. Vogiatzis, G. Kouroussis, M. Crocker, & M. Pawelczyk (Eds.), Proceedings of the 23rd International Congress on Sound and Vibration (Proceedings of the International Congress on Sound and Vibration). International Institute of Acoustics and Vibrations.