Ballast vibrations and deformations due to different train loading scenarios studied using the discrete element method

Yu Qian, Erol Tutumluer, Hai Huang

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

2 Scopus citations

Abstract

This paper focuses on the effects of different dynamic train loading patterns on the vibration and permanent deformation accumulation trends of railroad ballast. As opposed to a continuous sinusoidalload pulse often applied in cyclic biaxial tests, the actual dynamic train loading may have loading patterns of varying pulse shapes with rest periods. A validated ballast model, based on the Discrete Element Method and imaging based aggregate size/shape characterization, was used to simulate both continuous sinusoidal and moving wheel loading patterns of different train loading speeds or frequencies with and without rest periods between loadpulses. The continuous sinusoidal loading resulted in larger ballast layer settlements in DEM simulations when compared to a more realistic moving wheel dynamic loading pattern that considered rest periods.

Original languageEnglish (US)
Title of host publicationAdvances in Environmental Vibration - Proceedings of the 5th International Symposium on Environmental Vibration, ISEV 2011
EditorsHirokazu Takemiya, G. De Roeck, Wanming Zhai, E. Tutumluer
PublisherScience Press
Pages613-619
Number of pages7
ISBN (Electronic)9787030323736
StatePublished - Jan 1 2011
Event5th International Symposium on Environmental Vibration, ISEV 2011 - Chengdu, China
Duration: Oct 20 2011Oct 22 2011

Publication series

NameAdvances in Environmental Vibration - Proceedings of the 5th International Symposium on Environmental Vibration, ISEV 2011

Other

Other5th International Symposium on Environmental Vibration, ISEV 2011
CountryChina
CityChengdu
Period10/20/1110/22/11

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Visual Arts and Performing Arts
  • Environmental Engineering
  • Management, Monitoring, Policy and Law

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  • Cite this

    Qian, Y., Tutumluer, E., & Huang, H. (2011). Ballast vibrations and deformations due to different train loading scenarios studied using the discrete element method. In H. Takemiya, G. De Roeck, W. Zhai, & E. Tutumluer (Eds.), Advances in Environmental Vibration - Proceedings of the 5th International Symposium on Environmental Vibration, ISEV 2011 (pp. 613-619). (Advances in Environmental Vibration - Proceedings of the 5th International Symposium on Environmental Vibration, ISEV 2011). Science Press.