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本文以沪昆高铁浙江段前期勘测定界控制测量为例,阐述坐标系统选择的过程,通过对投影变形值的分析,选择适宜的坐标系统,并建立了该线路的GPS平面控制网,满足勘测定界测量工作的要求。 更多还原

【Abstract】 Take the boundary determination measurement of Zhejiang high-speed railway section of Shanghai-Kunming line as an example,this paper states the process on how to choose the coordinate system.Through the analysis on the values of projective deformation,an appropriate coordinate system is selected and a GPS plane control net is then established.The results show that the accuracy of this coordinate system could satisfy the survey requirement. 更多还原