高速铁路框架控制网闭合环检验方法研究

详细信息    查看全文 | 推荐本文 |

英文篇名：Research on closure testing method of high speed railway controlling network datum (CP0) 作者：高淑照 ; 魏涌 英文作者：GAO Shuzhao1,WEI Yong2(1.Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China;2.Engineering Design & Consultant Group Co.Ltd of China Railway,Beijing 100020,China) 关键词：框架控制网 ; 闭合环 ; Delaunay ; 三角网 英文关键词：CP0;Closed loop;Delaunay's triangulation network 中文刊名：TDJZ 英文刊名：Railway Engineering 机构：西南交通大学地球科学与环境工程学院;中铁工程设计咨询集团有限公司; 出版日期：2013-08-20 出版单位：铁道建筑 年：2013 期：No.474 基金：中央高校基本科研业务费专项资金(SWJTU09CX01,SWJTU12ZT07,SWJTU11BR015) 语种：中文; 页：TDJZ201308040 页数：4 CN：08 ISSN：11-2027/U 分类号：124-127

摘要

高速铁路框架控制网(CP0)的GPS闭合环检验,具有同步观测、异步构环、组合方法多、计算工作量大的特点。目前市面上的商用软件,在多时段异步环的构建方式及闭合环限差的计算方法上,无法满足高速铁路工程测量规范中闭合环检验的要求。本文在分析现有闭合环搜索方法适用性的基础上,使用Delaunay三角网构建闭合环路信息,然后采用时段错位循环组合方法计算三角网异步环闭合差。使用结果表明,该方法可以消除CP0闭合环的交叉和重叠现象,大幅减少闭合环检验的计算工作量。
        The testing method of GPS closed loops on high speed railway CP0 features simultaneous observation,non-simultaneous observation loop,various baseline combinations and heavy workload in calculation.With regard to the non-simultaneous loop construction for multi-observation sessions and the calculation approach for the limit of error,the commercial software available at present is not able to meet the requirement of closed loop testing defined in the Specifications for survey engineering of high speed railway.Therefore,the studies in this area are of great significance for future practice.Based on an analysis on the existing methods,the paper put forwards a new approach,in which Delaunay's triangulation network is used to create closed-loop information path,then the closing error of nonsimultaneous observation loop in triangulation network is calculated by using circulating combinations of shifting observation sessions.The result suggests that this could effectively eliminate the crossover and the overlaps of CP0 closed loops,and sufficiently reduce the workload in calculation.

引文

[1]中华人民共和国铁道部.TB10601—2009高速铁路工程测量规范[S].北京:中国铁道出版社,2010.
    [2]白征东.GPS网中最小独立闭合环的自动搜索[J].测绘科技动态,1994(2):18-21.
    [3]王金岭,李陆勋.控制网最小闭合环信息自动生成算法[J].测绘通报,1995(1):11-15.
    [4]刘根友.剥蚀法计算GPS观测网独立环闭合差[J].测绘工程,2001,10(1):33-36.
    [5]陈玉莹.控制网最小独立闭合环的搜索算法[J].工程勘察,2010(5):65-69.
    [6]游为,范东明,付淑娟.最短独立闭合环与附合路线的快速搜索方法[J].测绘科学,2009(7):139-140.
    [7]姚连璧,周小平.基于MATLAB的控制网平差程序设计[M].上海:同济大学出版社,2006.