中文摘要：

通过建立地面线路城轨列车引起的自由场地振动分析模型，并对模型中不同影响因素进行分析，建立地面振动预测模型。分析模型包括振源和场地两个部分，由列车运行作用于道碴上的力进行联系。影响因素包括：钢轨类型，轨道不平顺，列车速度、编组、载客量，场地土性质。利用课题组在京广铁路沿线进行的自由场地振动测试对振动分析模型进行验证，结合统计软件的相关程度来评价本文所建立的振动预测模型的适用性。

英文摘要：

A prediction model for field vibrations induced by urban trains of ground line is proposed by establishing an analytical model and influence factor analysis. The analytical model is composed of two models, the source mod- el and the path model, which are linked by the force on ballasts. The influence factors include rail type, rail irreg- ulation, train speed, train arrangement, train load and ground soil properties. The analytical model is validated by the in situ field measured data obtained at the Beijing-Guangzhou railway line. Together with the correlation degree of statistical software, the vibration prediction model is validated. The results show that the prediction model is suit- able to predict the vibration induced by urban trains of ground line.