无人机倾斜摄影测量建模技术在基坑工程量测算中的应用

Application of UAV Inclined Photogrammetric Modeling Technology in Calculation of Foundation Pit Quantities

利用无人机航行操作比较灵活、不受地形限制等优势,通过无人机倾斜摄影测量技术快速获取在建项目地形数据,并基于地形数据利用Context Capture软件进行整合分析快速建立三维模型;结合三维模型分析快速获取现场施工实际工程量。与传统GPS-RTK测量、人工测量、手动建模等方法相比较,该方法具有更可靠的计算精度、更快的成果输出速度、更少的外业投入、更高的内业自动化程度,可为施工现场工程量结算提供重要参考依据。通过具体工程实例进行三维建模试验,总结了一套高效的适用于实际生产操作的技术方案,并将其运用于实际生产中。

Taking the advantages of flexible navigation operation of UAV and being free from terrain restrictions,the terrain data of the project under construction can be quickly obtained through UAV tilt photogrammetry technology,and based on the terrain data,the threedimensional model can be quickly established by using Context Capture software for integration analysis;Combined with 3D model analysis,the actual quantities of on-site construction can be obtained quickly;Compared with the traditional GPS-RTK measurement,manual measurement,manual modeling and other methods,it has more reliable calculation accuracy,faster output speed,less field investment,and higher degree of automation in office work;It can provide an important reference basis for the settlement of quantities on the construction site.In this paper,a set of efficient technical scheme suitable for actual production operation is summarized through the 3D modeling experiment of a specific project,and it is applied to actual production.