山区河谷条件下地形勘测和高速立交桥建模方法研究  

RESEARCH ON TOPOGRAPHIC SURVEY AND MODELING METHODS FOR HIGH SPEED OVERPASS BRIDGES UNDER MOUNTAINOUS RIVER VALLEY CONDITIONS

作　　者：安家乐 韩春华[2] 孟靖凯 钱熙 AN Jia-le;HAN Chun-hua;MENG Jing-kai;QIAN Xi(College of Architecture and Engineering,Kunming University of Science and Technology,650500,Kunming,China;College of Transportation Engineering,Kunming University of Science and Technology,650500,Kunming,China;YCIH No.1 General Contracting Department,650000,Kunming,China)

机构地区：[1]昆明理工大学建筑工程学院,昆明650500 [2]昆明理工大学交通工程学院,昆明650500 [3]云南省建投投资控股集团总承包一部,昆明650000

出　　处：《建筑技术》2025年第8期948-952,共5页Architecture Technology

基　　金：国家自然科学基金资助项目(51268023)。

摘　　要：采取小型无人机倾斜摄影技术、BIM建模及场景融合方法进行勘测及数据可视化研究。外业利用GPS基站和移动站对像控点和校核点精准定位,并通过无人机以及后差分技术采集山区河谷的倾斜影像数据。内业对采集的数据进行处理,实现山区河谷大面积实景建模并生成点云文件。获取的高精度计算结果及通过GPS测量选取的校核点坐标与模型对应位置坐标进行对比分析,结果显示,利用无人机倾斜摄影技术采集的地形数据高程中误差为2.24 cm,平面中误差为2.79 cm,精度符合规范要求。根据高速公路的施工图纸在三维模型上进行精细化BIM建模设计,为高速公路的设计提供施工前的可视化交付方案。结果表明,无人机倾斜摄影技术结合BIM建模可作为山区河谷地区等复杂环境下基础设施建设工程的重要技术支撑,为类似相关研究提供可行性方案,具有一定的实用价值。this paper adopted the small drone tilt photography technology,BIM modelling and scene fusion methods to carry out the research on surveying and data visualisation.The external work used GPS base station and mobile station to accurately locate the image control point and calibration point,and collected the tilted image data of the mountainous river valley through the drone and postdifferential technology.The collected data were processed internally to achieve large area real view modelling of the mountainous river valleys and generate point cloud files.Comparison and analysis of the obtained high-precision calculation results and the coordinates of the calibration points selected by GPS measurement with the corresponding position coordinates of the model show that the elevation error of the terrain data collected by the UAV oblique photography technology is 2.24 cm and the plane error is 2.79 cm,which is in line with the specification requirements.According to the construction drawings of the highway,the refined BIM modelling design is carried out on the 3D model,which provides a pre-construction visual delivery scheme for the design of the highway.The results show that UAV oblique photography technology combined with BIM modelling can be used as an important technical support for infrastructure construction projects in complex environments such as mountainous river valley areas,and provide feasible solutions for similar related research with certain pra ctical value.

关 键 词：小型无人机 地形勘测 实景建模 BIM模型 场景融合 

分 类 号：TU195[建筑科学—建筑理论]