A 3D Modeling Method Integrating BIM and Point Cloud Data

With the rapid development of 3D vision technology, laser scanning, tilt photography and other technologies make point cloud data acquisition more convenient, so that it can meet the needs of a variety of building construction scenarios applications. Point cloud technology is the key data support for digital development in the construction field, and has been widely used in building construction management. In this paper, the 3D point cloud is combined with BIM technology to realize the 3D modeling of building construction sites and urban pipe networks. The point cloud data is obtained by 3D laser scanning equipment, and pre-processed by point cloud processing software, including splicing, denoising, and streamlining operations; then the feature point cloud extraction method is combined with BIM modeling software and visual programming technology, which effectively solves the problem that traditional mapping methods are unable to obtain and process complex building information and the problem of information islands in the BIM model. The method of this paper is of great significance for the digitalization, informatization and visualization of future building construction and municipal pipeline network operation and maintenance management.