: 为解决公路隧道建设过程中产生的海量工程数据缺乏存储规则与管理效率低下等问题,依托云南省老营隧道工程,采用 GIS/BIM数据集成方法开展公路隧道数字化管理研究。 首先,对公路隧道海量工程数据进行分类并形成数据字典,提出统一的数 据存储标准; 其次,通过CAD到ArcGIS的数据转换,以主题图的形式在地理场景中表达二维图形,生成工程底图和数字化对象; 再 次,分离三维BIM模型单元的属性与几何信息,在Unity软件中实现几何模型的拼接、渲染与添加脚本,发布成Unity3D文件; 最后, 提出工程数据与GIS、BIM集成的技术方案,并利用开发的公路隧道数字化管理系统实现GIS/BIM一体化联动、数据实时录入与资 料在线查询等功能。

There is no storage rule for massive engineering data generated during the construction of highway tunnels, and the data management efficiency is low. As a result, the GIS and BIM data integration method is used to study the digital management of Laoying Highway Tunnel in Yunnan. Firstly, the massive highway tunnel engineering data is classified to develop a data dictionary; and uniform data storage standards are proposed. Secondly, the data is transformed from CAD to ArcGIS to express 2D graphics with topic maps in the geographic scene and generate engineering base maps and digitized objects. Meanwhile, the attributes and geometric information of 3D BIM model units are separated; and after splicing, rendering and scripts adding of geometric models in Unity software, a Unity3D file is released. Finally, the technical scheme of integrating engineering data with GIS and BIM is proposed; and the functions of GIS/BIM integrated linkage, real-time data entry and material query online are realized in the developed highway tunnel digital management system.