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我国的经济处于快速发展期,城市化的进程步伐也在大大加快,最终将形成覆盖我国主要城市的城市公共交通、快速客运和高速铁路等网络。少维修、高稳定性的无砟轨道的开发与应用,是有轨交通轨道结构发展的必然趋势。但无砟轨道存在结构刚性大,易与路基系统产生耦合振动,造成不便甚至是严重事故,因此减振降噪是无砟轨道结构设计必须解决的问题。本文着重探讨了无砟轨道一路基系统的耦合振动现象,提出了相关的解决建议。
The economy of our country is in a period of rapid development. The pace of urbanization is also accelerating. It will eventually form a network of urban public transport, rapid passenger transport and high-speed railways covering major cities in our country. The development and application of ballastless track with less maintenance and high stability are the inevitable trends in the development of ballastless track structure. However, the existence of ballastless track structure is rigid and easy to produce coupling vibration with the subgrade system, causing inconvenience and even serious accidents. Therefore, vibration and noise reduction are problems that must be solved in ballastless track structure design. This article focuses on the coupled vibration of a ballastless track-based system, and puts forward some suggestions on how to solve this problem.