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Effects of the trench geometry on vibration mitigation level in high-speed railway tracks

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Abstract

Train-induced ground vibration is numerically analyzed using the finite element method (FEM) in this paper. Varieties of open trenches including partial and full length systems with different geometries are employed as the vibration mitigation strategies. Ground is modeled by multiple soil layers and the train load pattern is simulated by series of successive moving loads. A parametric study is then carried out after verification of the numerical model. Effects of different parameters including the trench type, size and geometry and the train speed on the vibration mitigation level are investigated. The operational speeds are set to be in vicinity of the Rayleigh wave propagation velocity. Two types of active and passive trenches are considered with three different geometries consisting of rectangular, triangular (wedge) and circular cross sections.

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Authors and Affiliations

  1. Center of Excellence in Railway Transportation, School of Railway Engineering, Iran University of Science and Technology, Tehran, 16846-13114, Iran

    Davood Younesian & Mehran Sadri

Authors
  1. Davood Younesian
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  2. Mehran Sadri
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Correspondence to Davood Younesian.

Additional information

Recommended by Associate Editor Cheolung Cheong

Davood Younesian received his Ph.D in Mechanical Engineering, from Sharif University of Technology, Iran. He joined the School of Railway Engineering at Iran University of Science and Technology in 2005. He is now an associate professor and dean of the school. Dr. Younesian’s research area is mainly focused on the non-linear and random vibrations and dynamics of structures and railway vehicle systems. He has published more than 90 articles so far in international journals and conference proceedings.

Mehran Sadri received his BSc in Mechanical Engineering from Razi University of Kermanshah and his MSc in Railway Engineering from Iran University of Science and Technology, Iran. His research is mainly focused on finite elements, non-linear vibration and control of railway vibrations.

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Younesian, D., Sadri, M. Effects of the trench geometry on vibration mitigation level in high-speed railway tracks. J Mech Sci Technol 26, 2469–2476 (2012). https://doi.org/10.1007/s12206-012-0623-0

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  • DOI: https://doi.org/10.1007/s12206-012-0623-0

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