地铁车辆段有砟道床曲线整正技术研究  

Research on the curve correction technology of ballasted track beds in metro depots

作　　者：马琛琛 MA Chenchen(Rail Transit Branch of China Railway 24 Bureau Group Co.,Ltd.,Shanghai 200040,China)

机构地区：[1]中铁二十四局集团有限公司轨道交通分公司,上海200040

出　　处：《现代城市轨道交通》2024年第1期113-118,共6页Modern Urban Transit

摘　　要：基于工程实例,提出一种基于最小方差原理的拨道量优化算法,以更有效地控制曲线正矢。研究道砟捣固作业对线路稳定状态的影响,总结提出道砟捣固质量控制措施。从传统简易拨道算法和拨道量优化算法在现场实际施工中的应用来看,传统拨道算法对轨向不平顺的控制不稳定,受人为计算因素影响大,计算次数多;而拨道量优化算法基本只需要一次计算就能达到较为理想的效果。采取合理的捣固质量控制措施有助于保持轨道短期稳定,延长平面曲线劣化周期,轨道状态的长期劣化趋势也优于普通拨道捣固作业。Building upon an engineering case study,this article establishes a track lining optimization algorithm based on the minimum variance principle to regulate the curve versine.It also delves into the influence of ballast tamping operations on the line's stability,and then summarizes and proposes control measures for ensuring the quality of ballast tamping.From the application of the traditional simple track-lining method and the track-lining optimization algorithm in actual on-site construction,it can be observed that the traditional lane-dialing method is unstable in terms of controlling track direction irregularities.This is greatly affected by human calculation factors and requires a large number of calculations.Meanwhile,the track lining optimization algorithm can basically achieve satisfactory results by conducting a simple one-time calculation.Adopting reasonable tamping quality control measures would be helpful in effectively maintaining the short-term stability of the track and prolonging the deterioration period of the planar curve.The long-term track state reduction trend is also superior to that observed in ordinary track tamping operations.

关 键 词：地铁 轨道工程 曲线整正 有砟道床 捣固质量 

分 类 号：U215.5[交通运输工程—道路与铁道工程]