高速铁路道岔可动心轨辙叉拆分修技术研究及应用  

Research and Application of Disassembly and Repair Technology for Movable Point Frog of High-speed Railway Turnout

作　　者：张加奇 ZHANG Jiaqi(China Railway Guangzhou Bureau Group Co.,Ltd.,Office of Safety Supervision,Guangzhou 510030,China)

机构地区：[1]中国铁路广州局集团有限公司,广州510030

出　　处：《高速铁路技术》2022年第3期39-44,共6页High Speed Railway Technology

摘　　要：随着列车高速、高密运行,道岔钢轨病害逐渐显现并不断加剧,其中可动心轨辙叉区钢轨部件伤损尤为严重、频繁,严重影响列车的平稳安全运行,需要及时进行更换处理。为节约道岔更换成本、解决轨道车吊装能力不足等问题,文章开展可动心轨辙叉拆分更换相关技术研究,结合中国铁路广州局集团有限公司管内京广高铁铺设使用的客专系列、CN系列1/18道岔,对可动心轨辙叉拆分更换技术可行性与操作流程进行了分析研究;依托相关工程案例,介绍了辙叉拆分修技术的施工准备工作、技术操作流程、应急处置预案和关键操作步骤等;现场实际应用中也取得了预期的效果。With the high-speed and high-density operation of the train,the rail defects of the turnout gradually appear and continue to intensify,and the rail components of the movable point frog are particularly seriously and frequently damaged,which seriously affects the smooth and safe operation of the train and needs to be replaced in time.In order to save the cost of turnout replacement and solve the problems of insufficient lifting capacity of the rail car,the paper carries out the research on the relevant technology of the disassembling and replacement of movable point frog,and analyzes the feasibility and operation process of the disassembling and replacement technology of movable point frog in combination with the passenger dedicated series and CN series 1/18 turnout used in the laying of Beijing-Guangzhou High-speed Railway under the management of China Railway Guangzhou Group Co.,Ltd.Relying on relevant engineering cases,the construction preparation,technical operation process,emergency disposal plan and key operation steps of frog disassembly and repair technology are introduced.Expected results have also been achieved in practical application on-site.

关 键 词：高速铁路 可动心轨辙叉 辙叉拆分修技术 心轨 翼轨 叉跟尖轨 

分 类 号：U213.62[交通运输工程—道路与铁道工程]