基于椭球膨胀的山区长距离输水线路工程独立坐标系统建立

Independent coordinate system for long distance water transportation line engineering in mountain area based on expansion ellipsoid method

阐述椭球膨胀法的基本原理,根据椭球膨胀法原理开发坐标转换软件实现高程投影面的任意变换。采用椭球膨胀法对夹岩水利枢纽及黔西北供水工程长距离输水工程独立控制网的建立进行分析,论证该方法建立独立坐标系统的合理性和可靠性。

The basic principle of expansion ellipsoid method is expounded and the corresponding coordinate conversion software is developed to realize the arbitrary transformation of the elevation projection surface. Ellipsoid expansion method is used to establishment of the independent control network for the water conveyance project of the Yangtze River and the water supply project in the northwest of Guizhou. The rationality and reliability of the independent coordinate system is demonstrated.