This paper combines 3D laser scanning technology with BIM technology to realize 3D modeling of underground stations,tunnels and ancillary facilities of urban rail transit.The point cloud data is obtained by laser scanner,and the point cloud processing software is used for pre-processing,including splicing,denoising and simplifying operations.Then,the feature point cloud extraction method combined with BIM modeling software and visualization programming technology,which is used to effectively solve the problem that traditional surveying and mapping methods can not obtain and process complex underground building information and information island in BIM model.This method is of great significance for the future development of urban rail transit engineering construction and operation and makes maintenance management towards informatization and three-dimensional visualization.
关键词
三维激光扫描技术/BIM技术/点云数据/三维建模/Dynamo/城市轨道交通
Key words
3D laser scanning technology/BIM technology/point cloud data/3D modeling/Dynamo/urban rail transit
维普
万方数据