倾斜摄影测量在复杂场地土方计算中的应用

Application of oblique photogrammetry in complex site earthwork calculation

使用全站仪和GPS RTK进行土方测量的方法,效率低且成本高,对于现场有大量弃土和建筑垃圾等情况的复杂场地,野外采集数据较为困难,危险系数大。传统的三角网法、方格网法、断面法等计算土方的方法,都需要依据一定密度的高程数据来进行计算,计算过程繁琐。本文通过无人机倾斜摄影测量的方法对复杂场地的地形进行三维建模,通过软件直接在三维模型上进行土方量算,并将量算结果与传统三角网法的计算结果进行比较,结果表明:三维模型量算结果能够满足工程应用要求,且降低了成本,保障了安全,提高了效率。

The method of using total station and GPS RTK for earthwork measurement has low efficiency and high cost.It is difficult to collect data in the field for complex sites with a large amount of abandoned soil and construction waste,and the risk factor is large.Traditional methods such as triangulation method,grid method and cross section method need to be calculated based on certain density elevation data,and the calculation process is complicated.In this paper,the UAV tilt photogrammetry method is used to build 3D model of the terrain of the complex site and calculate the earthwork by the software directly on it.The calculation results are compared with those of the traditional triangulation method,and it shows that the three-dimensional model calculation results can meet the requirements of engineering application,reduce the cost,ensure the safety and improve the efficiency.