Study of engineering survey technology for large-scale irrigation zone with long-distance water delivery facility
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 eleva-tion control network establishment,using low-altitude UAV aerial survey and Lidar measurement technology for top-ographic map mapping,loading high-precision geoid model during field mapping to improve elevation measuring ac-curacy,etc.
long-distanceirrigation zone with water delivery facilityengineering surveylow altitude UAV aerial photogrammetryLidar measurementLongjiang River Valley Irrigation Zone