多尺度需求下的铁路一张图“宏-微”观设计技术

“Macro-Micro”Design Technology of One Railway Map under Multi-scale Requirements

从数字孪生铁路资产海量大数据计算机高效表达的技术需求出发,分析地理数据与BIM模型多尺度表达及数据生产机制,剖析计算机辅助设计手段对数字资产高效表达所构成的空间限制与多尺度生产缺陷。结合智能铁路工程GIS+BIM勘察、设计、建造、运维一张图一体化表达的高性能需要,从“宏-微”观两极尺度出发,提出地理设计与BIM设计手段分别实现空间布局设计与结构设计,让分工更明晰、更单纯,简化了勘察设计信息化流程,确立了以数字孪生铁路资产为核心的“宏-微”观一张图构建技术手段。

According to the technical requirements of efficient expression of massive big data computer of digital twin railway assets,this paper analyzes the multi-scale expression and data production mechanism of geographic data and BIM,and dissects the space limitation and multi-scale production defects caused by computer-aided design.Combined with the high performance needs of GIS+BIM survey,design,construction,one O&M map,and integrated expression of intelligent railway engineering,the geographical design and BIM design method are proposed to realize spatial layout design and structural design respectively from the“macro-micro”perspective,which makes the division of labor clearer and simpler,simplifies the informationization process of survey and design,and establishes the technical means of“macro-micro”one-map construction with digital twin railway assets as the core.