论文部分内容阅读
通过测试试验列车以不同速度通过路涵过渡段时的路基面动应力,分析研究行车速度、行驶方向等各种因素对路涵过渡段路基面动应力幅值变化的影响以及动应力沿线路纵向的分布规律。结果表明,列车行驶速度对路基动应力值影响很大,采用正梯形的过渡段结构型式,以及过渡段长度的设置基本能满足时速200 km客货共线铁路的技术要求。
Through testing and testing the dynamic stress of subgrade at different speed passing through road and culvert transitional section, the influence of various factors such as driving speed and traveling direction on the dynamic stress amplitude change of subgrade at the transitional section of road and culvert and the influence of dynamic stress along the longitudinal The distribution of law. The results show that the train speed has a great influence on the dynamic stress of the embankment. The trapezoidal transitional section structure and the length of the transition section can basically meet the technical requirements of 200 km / h passenger and freight interchange.