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P.K. Woodward, A. El-Kacimi, O. Laghrouche and G. Medero

Institute for Infrastructure and Environment, School of the Built Environment, Heriot-Watt University, Edinburgh, United Kingdom

doi:10.4203/ijrt.1.1.5

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P.K. Woodward, A. El-Kacimi, O. Laghrouche, G. Medero, "Breaking the Ground Speed Barriers for Ultra-Speed Trains: Rayleigh Ground Wave Modelling and Mitigation", International Journal of Railway Technology, 1(1), 105-119, 2012. doi:10.4203/ijrt.1.1.5

Keywords: railways, high-speed, ground vibration, ground Mach cones.

Summary

History has shown that operational train speeds tend to eventually follow maximum train speeds. The age of high-speed railways has been steadily developing since the construction of the Shinkansen Railway Line in the 1960s. The Japanese Maglev set a speed record of 581 km/h in 2003; however, a modified French TGV set a speed record of 574.8 km/h on a ballast track in 2007. It is clear that a new era of train speed records is being set, which leads to potential issues with train-track interaction. In this paper the problem of train speeds passing the Rayleigh ground wave velocity are modelled using a three-dimensional finite element program called DART3D. The paper shows the development of a ground Mach cone and associated ground vibration both on the track and towards the far-field boundaries.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	International Journal of Railway Technology ISSN 2049-5358 IJRT, Volume 1, Issue 1, 2012 Breaking the Ground Speed Barriers for Ultra-Speed Trains: Rayleigh Ground Wave Modelling and Mitigation P.K. Woodward, A. El-Kacimi, O. Laghrouche and G. Medero Institute for Infrastructure and Environment, School of the Built Environment, Heriot-Watt University, Edinburgh, United Kingdom doi:10.4203/ijrt.1.1.5 purchase the full-text of this paper Full Bibliographic Reference for this paper P.K. Woodward, A. El-Kacimi, O. Laghrouche, G. Medero, "Breaking the Ground Speed Barriers for Ultra-Speed Trains: Rayleigh Ground Wave Modelling and Mitigation", International Journal of Railway Technology, 1(1), 105-119, 2012. doi:10.4203/ijrt.1.1.5 Keywords: railways, high-speed, ground vibration, ground Mach cones. Summary History has shown that operational train speeds tend to eventually follow maximum train speeds. The age of high-speed railways has been steadily developing since the construction of the Shinkansen Railway Line in the 1960s. The Japanese Maglev set a speed record of 581 km/h in 2003; however, a modified French TGV set a speed record of 574.8 km/h on a ballast track in 2007. It is clear that a new era of train speed records is being set, which leads to potential issues with train-track interaction. In this paper the problem of train speeds passing the Rayleigh ground wave velocity are modelled using a three-dimensional finite element program called DART3D. The paper shows the development of a ground Mach cone and associated ground vibration both on the track and towards the far-field boundaries. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to IJRT purchase this issue (price £70 +P&P)
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