大型长距离输水灌区工程测量技术研究

Study of engineering survey technology for large-scale irrigation zone with long-distance water delivery facility

针对大型长距离输水灌区工程测量的重点和难点,从控制网建立、地形图测绘两个关键节点,探析如何利用现代化测绘技术(平面控制网观测利用北斗导航卫星技术、利用自编水准数据处理小软件提高高程控制网建立的效率,地形图测绘采用低空无人机航测、激光雷达测量技术,外业调绘加载高精度大地水准面模型提高高程测量精度等)快速、高效、高质量完成测量任务。

Aiming at the key points and difficulties of engineering survey for a large-scale irrigation zone project with long-distance water delivery facility,from the two key nodes of control network establishment and topographic map mapping,the authors discuss how to complete the measurement task quickly,efficiently and with high quality by use of modern surveying and mapping technology such as using Beidou navigation satellite technology for plane control network observation,using self-designed leveling data processing software to improve the efficiency of elevation control network establishment,using low-altitude UAV aerial survey and Lidar measurement technology for topographic map mapping,loading high-precision geoid model during field mapping to improve elevation measuring accuracy,etc.