高铁线路水准基点网复测稳定性分析方法研究  

Research on Methodology of Stability Analysis for Repetition Measurement of Line- benchmarks Network

作　　者：曹成度[1] 刘成龙[2,3] 杨雪峰[2,3] 刘志 

机构地区：[1]中铁第四勘察设计院集团有限公司工勘院,湖北武汉430063 [2]西南交通大学地球科学与环境工程学院,四川成都610031 [3]西南交通大学高速铁路运营安全空间信息技术国家地方联合工程实验室,四川成都610031

出　　处：《铁道科学与工程学报》2016年第5期800-805,共6页Journal of Railway Science and Engineering

基　　金：长江学者和创新团队发展计划资助项目(PCSIRT)

摘　　要：鉴于当前规范中关于高铁线路水准基点网复测稳定性分析方法仅能够探测出不稳定的测段,而无法探测出不稳定的水准点的缺陷,通过组合测段高差较差检测法和测段高差较差与允许高程较差综合检测法,进行线路水准基点网的完整稳定性分析。理论研究和实测数据的计算分析结果表明:这2种方法不仅能够探测出线路水准基点网中不稳定的测段,而且能够进一步探测出不稳定测段中不稳定的水准点,研究结果对高铁线路水准基点网复测稳定性分析和完善现行的高速铁路工程测量规范有一定的参照价值。The current methodologies for stability analysis of repetition measurement of line -benchmarks net-work in the specification can only detect unstable measurement segment but not unstable points.This paper pro-posed a combined detection method for the difference between the measured segments and a comprehensive meth-od that compares the difference between the measured and allowed segment heights.It could accomplish the com-plete stability analysis of line-benchmarks network.Both theoretical and experimental analysis results show that these two methods can not only detect the unstable measurement segments,but also further detect unstable benchmarks.The findings can provide useful reference for the stability analysis of repetition measurement of line-benchmarks network and further improve the Code for Engineering Survey of high-speed Railways.

关 键 词：线路水准基点网 复测 稳定性分析 测段 高差 

分 类 号：U212.2[交通运输工程—道路与铁道工程]