高铁无砟轨道路基动力响应数值模拟与对比分析  

Numerical simulation and contrastive analysis of dynamic response of subgrade under ballastless track of high-speed railway

作　　者：刘晓红[1] 杨恒山[1] 胡萍[2] 

机构地区：[1]湖南理工学院土木建筑工程学院,湖南岳阳414000 [2]南华大学城市建设学院,湖南长沙410004

出　　处：《山西建筑》2013年第28期119-121,共3页Shanxi Architecture

基　　金：国家自然科学基金资助项目(项目编号:50778180);湖南省教育科学"十二五"规划课题(项目编号:XJK012CGD008);湖南省教育厅项目(项目编号:11C0619);湖南省普通高等学校教学改革研究课题(项目编号:2012A09)

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。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.

关 键 词：动力响应 数值模拟 对比分析 无砟轨道 

分 类 号：U416.1[交通运输工程—道路与铁道工程]