多旋翼单镜头无人飞行器倾斜摄影测量技术在施工中的应用

Application of Oblique Photogrammetry with Multi-rotor Single-lens Unmanned Aerial Vehicle in Railway Construction

工程施工过程中往往需要对局部地形及地物分布、线路与周边地形关系、土石挖填方量、构筑物几何特征等进行较设计过程更加详细的测量以指导施工。采用传统测量方式在精度和工作量上难以取得双向高效的结果。多旋翼无人飞行器可不受地形约束,通过相机以较高的航速对航测区域进行扫描拍摄,通过倾斜摄影测量技术对航测区域进行模型重建继而获得携带更加准确丰富的地物、位置、几何信息的三维模型。本文以大同至张家口高速铁路为施工背景,通过局部地形测绘、路基填方体积计算、既有构筑物信息三维数字化等施工实例,介绍了其在工程施工中的应用。

Surveying and mapping during construction usually requires more explicit and precise measuring in many aspects, such as the distribution of terrain and features, the relationship between railway and the surrounding terrain, the geometric features of surrounding buildings and so on. With traditional measuring, the result cannot be very precise and usually it needs heavy workload. However, muhi-rotor unmanned aerial vehicle will not be limited by terrain, which can scan and take pictures of requiring areas with camera in a high speed, and at the same time, we can get a model of the areas by oblique photogrammetry so that we can built a 3D model including more exact information such as the terrain, the location and geometric feature of buildings. With a case of construction of Datong to Zhangjiajie High-speed Railway, this paper aims to introduce the applying of oblique photogrammetry with multi-rotor unmanned aerial vehicle in railway construction.