摘要
西藏自治区芒康县境内高海拔高速公路勘察设计项目,采用了无人机倾斜摄影测量绘制大比例地形图。阐述了倾斜摄影测量技术的生产流程和特点。在航线规划和像控点布设阶段,以高差和统一规划航线为原则进行布点,提高空三加密的精度和通过率,结合倾斜摄影实景三维建模软件和三维模型裸眼测图软件,快速生成桥隧关键工点的三维模型和1∶500地形图,经检查地形图满足1∶500地形图规范要求,形成了较完整的技术流程体系,并对公路勘测领域中的应用前景进行了展望。
For the high altitude highway survey and design project in Mangkang County,Tibet Autonomous Region,tilt photogrammetry technology of UAV was used to make large scale topographic map.Herein the work flow and features of this technology was described.In the phase of routing planning and photograph control point arrangement,the stationing was carried out by taking height difference and unified routing planning as the principle to improve the accuracy and pass rate of aerial triangulation and,with 3D reality modeling software and glasses-free 3D mapping software,3D models with 1∶500 topographic map for the key points of bridge and tunnel were made fast,and checked to be in line with the code.Thus the complete technical process system was formed,with the prospect for the application of this technology in the field of highway survey.
作者
刘铭扬
李红梅
孙炜
LIU Mingyang;LI Hongmei;SUN Wei(Survey Branch,China Highway Engineering Consultants Corporation(Wuhan),Wuhan 43000,China)
出处
《路基工程》
2020年第3期185-189,共5页
Subgrade Engineering
