斜轴墨卡托圆柱投影及其在高速铁路控制网中的应用

丁士俊; 何亮云; 李鹏鹏

doi:10.13203/j.whugis20130120

斜轴墨卡托圆柱投影及其在高速铁路控制网中的应用

1.
武汉大学测绘学院, 湖北武汉, 430079;
2.
国家测绘局精密工程测量与工业测量重点实验室, 湖北武汉, 430079;
3.
湖南城市学院, 湖南益阳, 413000;
4.
武汉市测绘研究院, 湖北武汉, 430022

基金项目: 国家自然科学基金(41174009)。

详细信息

作者简介:
丁士俊,博士,教授,研究方向为大地测量、现代测量数据处理理论与方法。shjding@sgg.whu.edu.cn

中图分类号: P231.5;P258
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出版历程
- 收稿日期: 2015-10-09
- 发布日期: 2016-04-04

Oblique Mercator Projection and Its Application to Control Network for High Speed Railway

1.
School of Geodesy and Geomaties, Wuhan University, Wuhan 430079, China;
2.
Key Laboratory of Precise Engineering and Industry Surveying, State Bureau of Surveying and Mapping, Wuhan 430079, China;
3.
Hunan City University, Yiyang 413000, China;
4.
Wuhan Geomatic Institute, Wuhan 430022, China

Funds: The National Natural Science Foundation of China, No.41174009.

摘要

摘要: 为了有效控制高速铁路全球定位系统(GPS)控制网投影变形,利用椭球变换、椭球面向球面投影以及球面圆柱投影基本理论,探讨了斜轴墨卡托投影的处理方法。通过算例分析表明,斜轴墨卡托投影与高斯投影相比,可有效控制长度变形,避免高斯投影分带过多的问题,因此该投影在高铁以及其它线路工程控制网中具有一定的优越性。
- 高速铁路 /
- 投影变形 /
- 椭球变换 /
- 斜轴墨卡托投影
Abstract: Foundation and rail construction must meet higher accuracy for high-speed railway, in order to effectively control projection distance deformation of a GPS control network and reduce the number of projection zone for the east-west highspeed railways, this paper discusses the processing method for the oblique Mercator projection to be applied to develop uniform plane coordinate system by the basic theoriessuch as ellipsoid transformation, projection from ellipsoid to sphere and spherical cylindrical projection. Through a practical engineering example analysis, we show that the oblique Mercator projection can control the length deformation and meet the 10ppm length deformation per kilometer for control network of nonballasted-track and 25ppm for ballast track, and avoid the divisions of too many projection zones. Comparing withnormal Gaussian projection the oblique Mercator projectionhas more superiorities on the east-west high-speed railway andother route engineering control networks.
- high speed railway /
- projection deformation /
- ellipsoid transformation /
- oblique Mercator projection

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参考文献(12)

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斜轴墨卡托圆柱投影及其在高速铁路控制网中的应用

作者简介: 丁士俊,博士,教授,研究方向为大地测量、现代测量数据处理理论与方法。shjding@sgg.whu.edu.cn

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Oblique Mercator Projection and Its Application to Control Network for High Speed Railway

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作者简介:
丁士俊,博士,教授,研究方向为大地测量、现代测量数据处理理论与方法。shjding@sgg.whu.edu.cn