测边后方交会单一方向精度分析  

The Single Direction Measurement Accuracy Analysis of Linear-Resection

作　　者：王小刚[1] 

机构地区：[1]兰州交通大学土木工程学院,兰州730070

出　　处：《高速铁路技术》2014年第6期58-62,共5页High Speed Railway Technology

摘　　要：高速铁路建设中全站仪应用广泛,并且站场建筑侵界检核尤为重要,严重时直接影响行车安全。由于高速铁路站场建筑物结构物繁多,通视条件差,全站仪后方交会给检核带来了便利。结合全站仪高精度的测距功能,讨论了测边交会中,已知点起算数据精度对交会点精度的影响,测距误差对交会点点位在某单一方向上精度的分析。提出了单一方向上高精度交会的点位布设方案,分析了多点测边交会的严密平差算法。使铁路站场建筑物位置检核更加合理,数据更加可靠。Total station is widely used in high speed railway construction, the station building assault check is especially important, and directly influences the train running safety. However, as a result of various high-speed field building structure and poor visibility conditions, the total station resection brings convenience to check. Combined with total sta-tion and high precision ranging function, the paper discusses the measuring edge, known effect on the accuracy of cross-ing point count data accuracy, range error on the crossing point in a single direction accuracy of analysis. The research proposes the single direction, high precision rendezvous point layout scheme, analyzes the rigorous adjustment algorithm of multi point side intersectian. Making location check of rallway station bulldings more reasonable, data more reliable. Hopefully,it ceuld provide reference for invasion area measurement in the future.

关 键 词：全站仪 测边交会 精度分析 单一方向误差 

分 类 号：U212.242[交通运输工程—道路与铁道工程]