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北京地铁10号线一期轨道工程包含8处钢弹簧浮置板道床地段,各地段的断面形式、曲线半径均不相同。同时,该项目的诸多其他特点对于浮置板地段的减振系统设计、浮置板结构设计均提出新的挑战与要求:在空间相对紧张的断面及限界条件下,如何保证浮置板系统的参振质量,满足钢弹簧浮置板道床的隔振效果;在不同的钢弹簧浮置板道床断面形式地段,如何合理设置接触轨支座;在不同的钢弹簧浮置板道床断面形式地段,如何调整钢弹簧浮置板道床地段排水系统,实现与普通道床的顺接。主要介绍上述技术难题的解决方案与计算细节,以及钢弹簧浮置板道床在各设计阶段需要系统考虑的因素,以期在遇到相似工程状况时能够作为参考。
The first phase of Beijing Metro Line 10 project contains eight steel spring floating slab bed sections, the sections of the cross-sectional form, the curve radius are not the same. At the same time, many other features of the project put forward new challenges and requirements for the design of the vibration-damping system and the design of the floating slab in the floating slab lot: how to ensure the stability of the floating slab system under the conditions of relatively tight space and boundary conditions The quality of the vibration, to meet the vibration isolation effect of the steel spring floating slab bed; how to set up the contact rail support in the different sections of the steel slab-free floating slab bed section; How to adjust the steel spring Floating slab bed lot drainage system, with the common track bed to achieve. It mainly introduces the solutions and calculation details of the above technical problems and the factors that need to be considered systematically in the design phase of the steel spring floating slab ballast so as to be used as a reference when encountering similar engineering conditions.