移动荷载作用下的轨道-地基系统的动力响应

Dynamic Response of Track-ground Systems Due to Moving Source

以列车运行时的轨道 -地基系统为对象 ,将轨道 -地基系统简化为半无限地基及成层地基上的 Winkle梁 ,对高速移动荷载作用下的梁 -地基系统的协同工作进行了分析 。

The present paper has dealt with the train track-ground interaction vibration due to a moving load on the track and the induced ground vibration transmission alongside. A bending beam models the track. The ground is modeled by either a half-space or stratum on rigid base. First, the ground characteristic is invested in the frequency-wave number domain for the wave propagation. Secondly the loading on the ground through interaction with the track is evaluated. The findings from the above make the useful basis for predicting the case of train-induced vibration.