| 高速铁路精密工程控制测量精度研究 |
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| 引用本文： | 刘家臣. 高速铁路精密工程控制测量精度研究[J]. 测绘与空间地理信息, 2011, 0(6): 215-218 |
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| 作者姓名： | 刘家臣 |
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| 作者单位： | 吉林省第二测绘院 |
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| 摘 要： | 高速铁路轨道控制测量采用精密控制测量技术,采用斜轴墨卡托投影可以避免高斯投影投影带可控范围小,坐标转换和分带计算的问题,对于东西走向的线路能很好地控制投影长度变形。文章以长吉高铁控制测量数据,实现斜轴墨卡托投影,经过其投影精度的探讨,确定斜轴墨卡托投影能满足高铁精密控制测量的精度要求。
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| 关 键 词： | 控制测量 长度变形 高斯投影 斜轴墨卡托投影 |
Research on Accuracy of Precise Engineering Control Survey for High-Speed Railway |
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| LIU Jia-chen. Research on Accuracy of Precise Engineering Control Survey for High-Speed Railway[J]. Geomatics & Spatial Information Technology, 2011, 0(6): 215-218 |
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| Authors: | LIU Jia-chen |
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| Affiliation: | LIU Jia-chen(The Second Surveying and Mapping Institute of Jilin Province,Changchun 130062,China) |
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| Abstract: | 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. |
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| Keywords: | control measurement length deformation Gauss Projection Oblique Axis Mercator Projection |
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