The dynamic finite element models on bridge and subgrade are established, and the simulation results are compared with the dynamic test results of ballastless track in Sui-Yu Railway Line, thus the reliability of the modeling method can be verified. 在此基础上建立了路基及桥梁上无砟轨道动力有限元分析模型,并与遂渝线无砟轨道动力测试结果相比较,验证了建模方法的可靠性。