高速铁路轨道基准网测量技术深化研究  

Further Research on the Measurement Technology of Track Reference Network for High-speed Railway

作　　者：付恒友[1] 刘成龙[2] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300251 [2]西南交通大学,成都610031

出　　处：《铁道工程学报》2014年第4期69-74,共6页Journal of Railway Engineering Society

基　　金：高速铁路轨道基准网测量技术深化研究(2012G008-B)

摘　　要：研究目的:现行高速铁路轨道基准网采用人工整平对中、半盘位、多测回的测量方式,通过坐标转换获得基准点坐标,存在点位无法永久保存、测量及使用效率低、精度指标无法评定等问题。本文针对以上问题,对高速铁路轨道基准网(CPIV)测量技术进行深化研究,并对研究成果进行仿真实验和生产验证。研究结论:(1)研究设计的CPIV测量标志组件和布设方法,可实现强制对中和点位永久保存,并可在施工建设和运营维护两个阶段使用CPIV控制网,统一了无砟轨道施工和运营维护控制基准;(2)提出的CPIV自由设站边角交会测量方法,可实现自动测量并消除了对中误差的影响,测量精度、观测值的可靠性和测量效率显著提高;(3)构建的CPIV边角交会控制网,按Helmert方差分量估计确定两类观测值的权比关系,根据间接平差原理进行CPIV平面网严密平差和精度评定,数学模型理论严谨,成果可靠;(4)研究成果可应用于高速铁路板式无砟轨道精调作业控制,对城市轨道交通无砟轨道施工控制具有重要的参考价值和借鉴意义。Research purposes： In current track reference network for high - speed railway, the coordinates of reference points can be gotten by coordinate transformation after manual leveling and centering, half - face and multi - round measurement. This method has some problems, such as the points couldn＇ t be preserved forever, low efficiency for measuring and using, their accuracy index couldn＇ t be assessed. In order to solve these problems, this paper further researches the technology of surveying for high - speed railway track reference network （ CPIV ）. Some simulation experiment and production verification are made. Research conclusions： （ 1 ） A set of marker and the method of its deployment, designed for CPIV surveying, can be used as force - centering stake and be preserved forever. The CPIV network can be used in the stages of construction and operation maintenance. The control datum of ballasfless track construction and operation maintenance has been uniformed. （2） The surveying method of side - angle resection at freely - occupied station for CPIV has realized auto - observation and eliminated the effects of centering error. The accuracy, reliability of observations and efficiency can be improved significantly. （3） In the side - angle resection control network for CPIV, the weight of two kinds of observations has been gotten by Helmert variance components estimation. The principle of indirect adjustment has been used for rigorous adjustment and accuracy assessment for CPIV horizontal network. The theory of rigorous and its fruits are reliable. （4）The research fruits can be applied in the control of fine ballastless track for high-speed railway, and it also has important reference value in ballastless trac maintenance of urban rail transportation. its math m ustment od of k construction el is slab and

关 键 词：无砟轨道 轨道基准网 控制测量 数据处理 精度评定 

分 类 号：U212.24[交通运输工程—道路与铁道工程]