无人机三维实景测绘在地铁项目土石方规划及现场实务的应用

Application of 3D Scene Surveying and Mapping of Unmanned Aerial Vehicle (UAV) on Earthwork Planning and on-site Practice of Metro Projects

施工前期土石方施工规划所需的测量工作,传统的都是先建网再进行逐步实测。在测量过程中,由于地形地貌复杂、测量难度大,导致原建筑物和地貌的尺寸数据不能准确及时地反映给工程技术人员。利用无人机3D实景测绘,360°视觉效果,可实时准确完成实景测绘,并直接从实景三维模型中获取坐标、距离、高差、面积、土石方,即足不出户也可以如在现场一般,既能了解现场情况,又可解决现场施工和管理工作等,极大地解放了生产力,促进现场测绘技术的发展与推广应用。

The measurement work required for the earthwork construction planning in the early stage of construction is traditionally built on a network,and then carried on step by step.In the surveying process,due to the complex landforms and the difficulties of measurement,the dimensional data of the original buildings and landforms cannot be accurately and timely reflected to the technical personnel.With 360-degree visual effects of,3D scene surveying and mapping of Unmanned Aerial Vehicle(UAV),real scene mapping can be completed accurately.According to this technology,coordinates,distances,height differences,floor areas,and earthworks can be directly obtained from the real scene map,which means one can learn the situation,solve the site problems and manage construction in the office,without need to go to the construction site.This technology greatly liberates productive force,and promotes the development and spreading of the on-site surveying.