Excessive ground vibrations associated with trains travelling at trans-rayleigh speeds by Victor V. Krylov

“…As the ground on the site of observation was very soft, the ground vibration boom could be observed for train speeds as low as 160 km/h. It is now well understood that excessive vibrations associated with ground vibration boom represent a serious hazard for the built environment, especially in the cases where high-speed lines are built on very soft soil. …”
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