铁路三维电子沙盘搭建及其应用研究OA北大核心

In order to solve the problems existing in the current electronic sand table of railway industry,such as different expression methods,single application content,high risk of data leakage,low efficiency of data loading,etc.,this paper researches the data processing,management and application methods of massive geological and BIM models,and establishes a standardized electronic sand table with BIM+GIS as the technical core,so as to better serve the railway design and construction.Based on the practice summary of the projects such as Rizhao-Lankao High-speed Railway,Lhasa-Nyingchi Railway,Chengdu-Chongqing middle line high-speed railway and other projects,combined with the relevant standards of China Railway BIM Alliance and China Railway,this paper puts forward the data standards of terrain,image,BIM model and thematic map for the application of electronic sand table.And the establishment of it is completed through the processes of coordinate transformation,data transformation,data slicing,knowledge atlas establishment,model release and front-end data collection.Finally,the online efficient organization and management of hundred-kilometer-level and multi-specialty data is realized.The proposed methods and standards are applicable to the management and analysis application in railway design and construction processes.