摘要
研究目的:在部分高速铁路工程独立坐标系搭接区域,由于坐标系设计及线路设计不当产生了线路中线无法平顺衔接的问题。本文通过比较分析,提出了产生原因及解决方案,对高速铁路坐标系设计及线路设计具有一定的指导意义。研究结论:通过对坐标系搭接区域出现问题的分析,得出如下结论:在坐标系设计时,应控制相邻两个坐标系投影变形之差;在线路设计时,应正确选用坐标系换带后控制点;在坐标转换时,相同的控制点在不同坐标系下应使用坐标换带方法转换。
Research purposes： In the jointing area of independent engineering coordinate system of high-speed railway,the inappropriateness of the coordinate system and track design causes the problem that the central line of track is not be linked up smoothly.Through the comparative analysis,this paper analyzes its reason and offers a solution,which has a directive sense to design of the coordinate system and track.Research conclusions：Through the analysis of the problem in the jointing area of coordinate system,the following points can be concluded： The projection distortion difference between the adjacent coordinate systems should be controlled reasonably in designing the coordinate system.The control points after transferring the central meridian of coordinate system should be chosen correctly for the design of track.The same control points in different coordinate systems should be transferred by changing the central meridian of coordinate systems.
出处
《铁道工程学报》
EI
北大核心
2010年第12期23-26,共4页
Journal of Railway Engineering Society
关键词
高速铁路
搭接区域
坐标系设计
线路设计
high-speed railway
jointing area
coordinate system design
track design
