The Integrated 3D As-Built Representation of Underground MRT Construction Sites

• 作者: Chia-Yu Lee Naai-Jung Shih Shih-Cheng Tzen Tzu-Ying Chan
• 来源期刊: 房屋建造与规划研究(英文)
• 学科: 医学
• 关键词: Point CLOUD 3D Scans As-Built Model Building Information Modeling (BIM) Level of Development (LOD) Mass Rapid TRANSIT (MRT)
• 年，卷（期）: 2013,（4）
• 页码范围: 153-162
• 页数: 10页
• 分类号: R73

摘要

This study facilitates the scalability of as-built data from an earlier street level to underground transportation sites from the life-cycle perspective of urban information maintenance. As-built 3D scans of a 6 km street were made at different time periods, and of 3 underground Mass Rapid Transit (MRT) stations under construction in Taipei. A scanned point cloud was used to create a Building Information Modeling (BIM) Level of Development (LOD) 500 as-built point cloud model, with which topographic utility data were integrated and the model quality was investigated. The complex underground models of the transportation stations are proofed to be in correct relative locations to the street entrances on ground level. In the future the 3D relationship around the station will facilitate new designs or excavations in the neighborhood urban environment.