斜轴墨卡托投影在引水工程测量的应用探究

Application of Oblique Mercator Projection in Water Diversion Engineering Surveying

分析影响施工控制网投影变形的主要因素及常用解决方案所存在的问题,引入斜轴墨卡托投影理论,并提出具体实施方法,并以长距离引水工程进行实例验证,讨论了斜轴墨卡托投影的适用范围。结果表明:斜轴墨卡托投影对坡变缓慢的线性工程具有通用性,可为引水等线性工程建立统一坐标系统的测量控制网提供参考。

The main factors affecting the projection deformation in the construction control network and the problems existing in the common solutions are analyzed,the theory of oblique Mercator projection is introduced,the specific implementation method is proposed,and the application scope of the oblique Mercator projection is discussed by case verification based on long-distance water diversion project.The results show that the oblique Mercator projection has versatility for linear engineering with slow slope,and can provide a reference for establishing a survey and control network with unified coordinate system for linear engineering such as water diversion project.