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中文摘要：
通过建立高速铁路路基动力响应数值模型，获得了武广高速铁路路堑段无砟轨道路基竖向及横向计算断面上4个动力响应参数随深度及水平距离的变化规律，经与实测结果对比分析发现，武广高铁同一路段动力响应计算结果与现场实测成果基本吻合，证明了所建动力数值计算模型的合理性。
英文摘要：
Dynamic response numerical model is set up for high-speed railway subgrade. The variation laws of four dynamic response parameters with depth and horizontal distance are obtained in the vertical and transverse section of ballastless track subgrade of Wuhan-Guangzhou high- speed railway. By comparative analysis on values of calculation and measure, we drew a conclusion that calculation values are basically consist- ent with the field test results of subgrade dynamic response at the same position of Wuhan-Guangzhou high-speed railway, the rationality of dy- namic numerical calculation model is proved.
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