顾及自动化养护机械的普速有砟铁路轨道控制网布设方式及其优化改进

Layout Mode and Optimal Improvement of Ordinary Speed Ballast Railway Track Control Network Considering Automation Maintenance Machinery

在铁路运营维护阶段,线路大型养护机械特别是自动化养护机械的使用极大提高了线路养护的效率和质量,但同时对轨道控制网(CPⅢ)提出了更高要求。本文对我国普速有砟铁路CPⅢ测量技术进行了系统的总结,对现有方法的优缺点进行了对比分析。通过工程实例对CPⅢ单侧形式和自由测站法建立的CPⅢ网精度情况进行统计分析,得出单侧形式CPⅢ点自由测站法的点位精度及相对点位精度皆优于导线测量法,能很好满足自动化养护机械对有砟铁路轨道控制网的需求。

In the maintenance stage of the railway,the use of large maintenance machinery,especially automatic maintenance machinery,have greatly improved the efficiency and quality of line maintenance,but at the same time put forward higher requirements for track control network(CPIII).This paper systematically summarizes the measurement technology of CPIII for general speed ballasted railway in China,compares and analyses the advantages and disadvantages of the existing methods.Through the statistical analysis of the accuracy of CPIII network established by CPIII single-sided form and free station method,it is concluded that the point accuracy and relative point accuracy of CPIII single-sided free station method are superior to traverse survey method,which can satisfy the requirements of automatic maintenance machinery for ballasted railway track control network.