提高城市轨道交通整体道床耐久性能的措施

Improving Measures for Monolithic Track Bed Durability in Urban Rail Transit

针对城市轨道交通整体道床出现的耐久性不足现象,从整体道床的工作环境特点入手,详细分析了整体道床的耐久性影响因素。介绍了提高整体道床耐久性的研究思路。在特定工程建设要求和自然边界条件下,针对提高整体道床耐久性,介绍了具体的设计控制参数取值、保证施工质量的措施,以及运营阶段道床定期养护维修措施。

In view of the problems in track bed durability in urban rail transit,and starting from the working conditions of the track basement,the influencing factors over the durability are analysed in detail and a new research method is introduced,aiming to improve the track bed durability.According to special engineering requirements and natural boundary conditions,the concrete controlling parameters,the engineering quality ensurance and ruoutine maintenance of the track bed in operation are introduced.