弹性支承块无砟轨道轮轨动态匹配性研究  

Study on Wheel-Rail Interaction Dynamic Matching of Elastic Support Block Ballastless Track

作　　者：杨超 YANG Chao(Engineering Department,China Railway Nanchang Group Co.,Ltd.,Nanchang Jiangxi 330000,China)

机构地区：[1]中国铁路南昌局集团有限公司工务部,南昌330000

出　　处：《高速铁路新材料》2025年第1期26-29,共4页Advanced Materials of High Speed Railway

摘　　要：中国铁路南昌局集团有限公司管内衢宁铁路开通运营初期,动力集中式动车组在弹性支承块无砟轨道区段运行时出现抖车现象,造成人体乘坐舒适度不良。通过调查研究分析,发现普速铁路无砟轨道区段轮轨动态匹配性不好时易造成抖车,通过打磨改善了轮轨匹配性关系,消除了抖车问题,提高了人体乘坐舒适度,减少了线路养护工作量。During the original operation of the Quzhou-Ningde railway within Nanchang Railway Group,there were instances of train shaking with the power centralized EMUs while running on the ballastless track sections with elastic support blocks,resulting in poor comfort for passengers.An investigation by the engineering department revealed that inadequate dynamic matching between the wheel and rail in ballastless track sections of conventional-speed railways could lead to train shaking.By polishing and improving the wheel-rail matching relationship,the issue of train shaking was mitigated,enhancing passenger comfort level and reducing the workload for track maintenance.

关 键 词：无砟轨道 弹性支承块 钢轨廓形 轮轨匹配 失稳抖动 

分 类 号：U211.5[交通运输工程—道路与铁道工程]