铁道标准设计2016，Vol.60Issue(4)：30-35,6.DOI:10.13238/j.issn.1004-2954.2016.04.008
水害条件下弹性道床垫减振轨道的性能研究
Study on Performance of Vibration Damping Track with Ballast Damping Pad Subject to Water Leakage
摘要
Abstract
In order to study the durability and stability of the vibration damping track with ballast damping pad under the condition of tunnel water leakage, the performance changes of track structure before and after water-immerged fatigue are tested and analyzed based on the design of indoor prototype tests, and the changing law of vibration damping performance of the vibration damping track before and after water-immerged fatigue is analyzed on the basis of the test results and the wheel/rail system dynamics theory. The results show that:(1)after fatigue, the function of each component is stable, the vibration damping track has good durability;(2) before and after water-immerged fatigue test, the stiffness change rate of the fastener system is 1. 40% and the stiffness change rate of ballast damping pad is 5. 95%;(3) the vibration damping track has stable performance of shock absorption compared with general monolithic roadbed structure, and can effectively reduce the vibration acceleration level of car body, wheel and rail in the center frequency range of 40~60 Hz.关键词
弹性道床垫/减振轨道/隧道水害/疲劳试验/减振性能/稳定性Key words
Vibration damping track/Ballast damping pad/Tunnel water leakage/Fatigue test/Vibration damping performance/Stability分类
交通工程引用本文复制引用
陈罄超,唐剑..水害条件下弹性道床垫减振轨道的性能研究[J].铁道标准设计,2016,60(4):30-35,6.基金项目
国家自然科学基金(51378439) （51378439）
