基于BIM+GIS的铁路工程电子沙盘系统的设计与实现

铁路工程是典型的带状结构，具有线长、点广等特点，为实现铁路工程全线全方位、多角度、多尺度的可视化展示及综合分析，融合建筑信息模型（BIM,Building Information Modeling）、地理信息系统（GIS,Geographic Information Systems）、数字高程、倾斜摄影及矢量地图等数据，设计并研发铁路工程电子沙盘系统。该系统通过对实体铁路工程仿真呈现，将施工过程信息动态附加，形成可交付运营维护的建设数字资产。在京张（北京—张家口）、京雄（北京—雄安）及其他重大铁路项目中的应用结果表明，电子沙盘系统具有较好的实用性、可扩展性及可视化效果，可为铁路工程各类资源高效利用、仿真分析及科学管理提供服务，也可为其他铁路项目开展电子沙盘的设计与开发提供参考。

Railway engineering electronic sand table system based on BIM+GIS

The railway project is a typical belt structure, with the characteristics of long line, wide point, etc. In order to achieve all-round, multi angle, multi-scale visual display and comprehensive analysis of the railway project, combining with Building Information Model(BIM), Geographic Information Systems(GIS), digital elevation, oblique photography, vector map and other data, this paper designed and developed an railway engineering electronic sand table system. The system dynamically appends the construction process information through the simulation of the physical railway project to form a construction digital asset that can be delivered for operation and maintenance. The application in Beijing-Zhangjiakou, Beijing-Xiong’an and other major railway projects shows that the electronic sand table system has good practicability, expandability and visualization effect, which can provide services for efficient utilization, realistic expression, simulation analysis and scientific management of various resources in railway projects, and also provide certain reference for the design and development of electronic sand table in other railway projects.