分析轨道交通采取的主要减振措施(钢弹簧浮置板道床、Ⅲ型减振器扣件和先锋扣件)的减振原理,并对其实际减振效果实地考察。结果表明,虽然3种减振措施基本可将地铁运行的振动控制在标准限值范围内,但在使用过程中出现钢轨异常波磨现象,还存在低频段减振效果差、理论与实际减振效果存在差距等问题。
The principles of main measures taken by track traffic to decrease vibration were analyzed inclu-ding the steel spring floating slab track,type Ⅲ rail vibration absorber fastener,and vanguard fastener,and their actual damping effects were tested by field monitoring.The results showed that although three kinds of vibration damping measures could basically control the vibration induced by subway train within the standard limits,the abnormal rail corrugation phenomenon appears in the course,and there are some issues exist that the low fre-quency damping effect is poor,and the gap between theoretical and practical damping effect is present.