不同坐标系统轨道交通线路顺接和换乘控制测量研究和应用

Research and Application on Transfer and Connection Control Surveyof Rail Transit Line with Different Coordinate Systems

市内轨道交通、市郊铁路和城轨快线等不同类型轨道交通线路由于线路长度、行政区划、历史等原因采用的坐标系统不一致,为保证不同坐标系统轨道精准衔接和换乘,需要对轨道交通线路坐标系统进行转换。本文介绍了轨道交通线路坐标系统转换方法,并以重庆市郊铁路璧铜线与城轨快线27号线轨道顺接为例,通过平面高程坐标联测和坐标转换,实现了璧铜线和27号线在轨道顺接处的坐标统一。对璧铜线和27号线转换的结果进行了检测,结果表明:转换结果准确可靠,能够满足璧铜线与27号线轨道顺接的要求。

The coordinate systems adopted by different types of rail transit lines such as urban rail transit,suburban railway and urban rail express are inconsistent due to line length,administrative division,history and other reasons.In order to ensure the accurate connection and transfer of rail transit line with different coordinate systems,it is necessary to convert the different coordinate system of rail transit lines.This paper introduces the conversion method of rail transit line coordinate system,and takes the connection of Chongqing suburban railway BiTong and urban rail express line 27 as an example,through the joint control survey of plane elevation and coordinate conversion,the coordinates of suburban railway BiTong and line 27 at the track joint are unified.This paper detects the conversion results of BiTong and line 27,the results show that the conversion results are accurate and reliable,and can meet the requirements of the smooth track connection between BiTong and line 27.