杭温高铁联调联试中轨道精调与钢轨打磨作业效果  

Effects Analysis of Track Fine Adjustment and Rail Grinding in Integrated Commissioning&Test of Hangzhou-Wenzhou HSR

作　　者：刘攀 王志波 曹红伟 刘锦龙 李连东 龙亦语 LIU Pan;WANG Zhibo;CAO Hongwei;LIU Jinlong;LI Liandong;LONG Yiyu(Infrastructure Inspection Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Hangzhou Track Maintenance Depot,China Railway Shanghai Group Co.,Ltd.,Hangzhou Zhejiang 310009,China;Beijing IMAP Technology Co.,Ltd.,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司基础设施检测研究所,北京100081 [2]中国铁路上海局集团有限公司杭州工务段,浙江杭州310009 [3]北京铁科英迈技术有限公司,北京100081

出　　处：《铁路技术创新》2024年第5期47-55,共9页Railway Technical Innovation

基　　金：中国铁道科学研究院集团有限公司科研开发基金项目(2021YJ014)。

摘　　要：联调联试是为铁路工程动态验收提供技术依据的重要手段,轨道质量状态是联调联试中线路能否通过验收评价的关键之一。结合杭温高铁联调联试工程实践,总结了无砟轨道精调、钢轨打磨标准作业流程,并提出杭温高铁基于动静态检测数据的轨道精调作业方案和钢轨打磨作业方案,分析对比轨道精调、钢轨打磨作业对轨道质量的改善效果。结果表明:基于动静态检测数据制定的轨道精调作业方案,在精调后动态轨道几何质量、轨道波长能量改善效果明显,作业效果明显好于基于静态相对测量数据制定的轨道精调作业方案。钢轨打磨后实测钢轨廓形中轨头横向±25 mm范围最大偏差为+0.1/-0.1 mm,轨头横向+25~+32 mm范围最大偏差+0.2/-0.3 mm,与60N标准廓形整体吻合情况良好并满足验收要求;对轨道不平顺有一定改善,尤其是高低、水平和三角坑。在高速铁路联调联试中,当采用动静态检测数据制定的轨道精调方案,也不能明显改善轨道不平顺时,可以在拉通试验前对钢轨进行快速打磨来有效降低TQI。该研究为新建高速铁路联调联试期间大幅度提升轨道质量提供了合理化建议。Integrated commissioning&test serves as a critical mechanism that provides the technical basis for the dynamic acceptance of railway projects.Among various determinants,track quality condition stands out as a key factor influencing whether a railway line can successfully pass acceptance during integrated commissioning&test.Drawing from practices during the integrated commissioning&test of Hangzhou-Wenzhou HSR,this paper summarizes the standard operation processes of ballastless track fine adjustment and rail grinding.It also presents operation schemes for track fine adjustment and rail grinding based on the dynamic and static inspection data of Hangzhou-Wenzhou HSR.Furthermore,this study analyzes and compares the effects of both operations on track quality improvement.The results indicate that the track fine adjustment scheme developed based on the dynamic and static inspection data significantly enhances dynamic track geometry quality and wavelength energy following the fine adjustment process.The improvements are markedly superior to those obtained from the track fine adjustment scheme formulated based on static relative measurement data.After rail grinding,measurements of the rail profile indicate that the maximum deviation of the rail head within the transverse±25 mm range is+0.1/-0.1 mm,while the maximum deviation of the rail head in the transverse+25 to+32 mm range is+0.2/-0.3 mm.These results align closely with the 60N standard profile and meet the acceptance requirements.Furthermore,the grinding process has led to improvements in track irregularity,particularly in terms of longitudinal level,cross level,and twist.In the integrated commissioning&test of HSRs,if a track fine adjustment scheme formulated based on dynamic and static inspection data cannot significantly improve the track irregularity,rapid rail grinding can be carried out before the through test to effectively reduce TQI.This study provides reasonable suggestions for greatly improving the track quality during the integrated commissioning&test

关 键 词：杭温高铁 联调联试 轨道精调 钢轨打磨 效果分析 

分 类 号：U457[建筑科学—桥梁与隧道工程]