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《Geomatics & Spatial Information Technology》 2011-06
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Research on Accuracy of Precise Engineering Control Survey for High-Speed Railway

LIU Jia-chen(The Second Surveying and Mapping Institute of Jilin Province,Changchun 130062,China)  
The problems such as the controlled area by projection zone is small,the coordinate transforming and calculating by zones of Gauss Projection can be avoided if control survey of high speed railway tracks adopts precise control survey technology with Inclined Axis Mercator Projection.The projection length deformation can be controlled well of east-west trend lines.This article achieves Inclined Axis Mercator Projection with Changji High-speed Railway control survey data.After the discussion on accuracy of projection,it is assured that the accuracy requirements of high-speed precise control survey can be met by Inclined Axis Mercator Projection.
【CateGory Index】: U212.2
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