过渡段路基刚度变化规律的试验研究  

Experimental Study on Stiffness Changes of Transition Roadbed

作　　者：童发明[1] 王永和[1] 何群[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《石家庄铁道学院学报（自然科学版）》2009年第2期23-26,共4页Journal of Shijiazhuang Railway Institute

基　　金：国家自然科学基金资助项目(50678177)

摘　　要：为了了解武广客运专线过渡段路基的整体刚度系数和阻尼系数,采用激振法(强迫振动)对武汉试验段涵-涵过渡段和路-桥过渡段路基的不同位置进行了激振试验,成功地获得了过渡段路基不同位置的相关指标,不仅为过渡段路基的强度、变形分析和仿真试验提供了必要的动力参数,同时也进一步验证了过渡段路基设计和施工的可靠性。In order to obtain the overall stiffness and the damping coefficient of the transition roadbed of Wuhan-to-Guangzhou passenger line, we used the excitation method （forced vibration） to test the transition roadbed of the culvert-to-culvert and the road-to-bridge at different locations in Wuhan passenger line, and successfully obtained the transition section of road-related indicators at different positions. It not only provides the necessary dynamic parameters to the strength analysis, deformation analysis and transition of the transition roadbed, but also verifies the reliability of the transition section of road design and construction.

关 键 词：客运专线 激振法 过渡段 路基 刚度 

分 类 号：U211.2[交通运输工程—道路与铁道工程]