铁道标准设计2019，Vol.63Issue(1)：40-44,5.DOI:10.13238/j.issn.1004-2954.201803020004
运营高铁精测网复测线上CPⅡ更新判定指标研究
Study on the CPⅡ Determination Index Updating on Precise Surveying System for Operating High Speed Railway
摘要
Abstract
The CPⅡstability determination and correct updating are the key and difficult points in the repeated measurement on the operating high speed railway. Based on the analysis of the CP II repeated measurement index updating in the high speed railway specifications and with reference to the engineering experiences on high speed lines, new criteria and indexes are proposed to address the overlimit of the relevant accuracy in the repeated measurement between adjacent points. The range analysis of the measurement difference between adjacent points and the original measurement azimuth angle, CPIII free network balancing verification and F test method show identical unstable points, which justifies the rationality of the updating criteria from different perspectives. Theory and practice show that the new index can not only reduce the updating rate of point location, but also improve the conformation of the measured unstable point with the actual changing condition of the point location, providing references for the revision of relevant specifications.关键词
铁路轨道/CPⅡ复测/更新判定标准/自由网平差/F检验法Key words
Rail track/CPⅡ repeated measurement/Updating criteria/Free network balancing/F test method分类
交通工程引用本文复制引用
李传勇,王鹏,罗庄,谭社会,张献州..运营高铁精测网复测线上CPⅡ更新判定指标研究[J].铁道标准设计,2019,63(1):40-44,5.基金项目
上海铁路局横向课题(LR01HX1135Y16035) （LR01HX1135Y16035）
