Abstract：The train track-ground interaction is analysed under the moving load on the track and the induced ground vibration. The track is modeled by a bending beam. The ground is modeled by both a half-space and layered stratum on rigid base. First，the ground characteristic is studied by the frequency-wave number domain for the wave propagation. Secondly the loading on the ground interacted with the track is evaluated. The presented results make useful basis for predicting the dynamic response of track-ground systems under high speed moving load.
akenhemier DC，Miklowitz J.Transient excitation of an elastic half-space by a point loadtravelling on the surface[J]. Journal of Applied Mechanics，ASME，Series E，1969，36(3)：505～515
2V
ictor VKrylov.Vibrational impact of high-speed trains，I，effect of track dynamics[J].Acoust.Soc.Am.，1996，100(5)：3121～3134
ieterman HA，Metrikine AV.The equivalent stiffness of a half-space interacting with a beam，critical velocities of a moving load alongthebeam[J].Mech.A/Solids，1996，15(1)：67～90
2002, Vol. 21 
