青岛岩层地铁减振轨道结构选型研究

由于在岩质条件下,地铁埋置在刚度较大的岩层中,振动衰减较慢,振动影响较远,因此对轨道减振的研究显得至关重要.对目前国内外主要的减振轨道结构及其性能分别进行了分析研究,如科隆蛋减振扣件、Vanguard（先锋）扣件、弹性短枕整体道床、浮置板等4种类型,并在此基础上对这4种减振轨道结构进行了比选分析.结合青岛地铁工程实际,较详细分析了减振轨道结构各部件的减振性能,从而为在岩层地质条件下城市轨道交通减振轨道结构选型提供借鉴和参考.

Research on Selection of Track Damping Structures in Qingdao Rock Metro

Under the rock conditions,the metros are embedded in a larger stiffness rock with the slow vibration attenuation and further impact,so it is vitally important to study the track vibration.In this paper,the main damping track structure and its performance at home and abroad are analyzed respectively,such as Cologne-Egg,Vanguard,Elastic Supporting Block,and Floating Slab Track,on the basis of which these four damping tracks are comparatively analyzed.According to the Qingdao subway situation,the vibration damping performances of various components of track structures are analyzed in detail in this article,which provides reference for the urban rail transit.