高速铁路轨道测量分站数据整体平差方法研究  

Adjustment method for high speed railway track measurements of all sub-stations

作　　者：王建军 Wang Jianjun(China Railway Zhengzhou Group Co.,Ltd.,Zhengzhou 450052,China)

机构地区：[1]中国铁路郑州局集团有限公司,郑州450052

出　　处：《工程勘察》2023年第7期52-56,共5页Geotechnical Investigation & Surveying

基　　金：陕西省重点研发计划(2021GY-266)。

摘　　要：针对目前轨道测量分站数据采用单测站独立计算方法处理存在相邻测站基准不一致、相邻测站相对精度低、搭接区段横垂向偏差大等问题,本文根据轨道测量任意相邻测站间存在公共点的特征,提出一种高速铁路轨道测量分站数据整体平差方法。通过阐述该方法原理、开展试验验证以及对实测数据进行分别处理,结果表明:本文采用的方法可有效克服单测站独立计算方法的诸多问题,自由设站精度的合格率从92%左右提高到95%以上,相邻测站轨道测量点重复测量横垂向偏差的合格率从90%左右提高到98%左右。Aiming at current problems of inconsistent datum of adjacent sub-stations,low relative accuracy between adjacent sub-stations,large transverse and vertical deviation of lap sections and so on by using the independent single station adjustment method,according to the characteristics of common points between any adjacent stations in track measurement,this paper presents a whole adjustment method for high speed railway track measurements of all sub-stations.By explaining the principle of the method,carrying out test verification and processing the measured data respectively,the results show that the method adopted in this paper effectively overcomes many problems of the single station independent calculation method,the qualified rate of free station accuracy increased from about 92%to more than 95%,the qualified rate of repeated measurement of transverse and vertical deviation at track measurement points of adjacent stations increased from about 90%to about 98%.

关 键 词：高速铁路 轨道测量 数据处理 整体平差 自由设站 平顺性 搭接精度 

分 类 号：P207.2[天文地球—测绘科学与技术]