Research on the Application of BIM+GIS Technology in Railway Subgrade Design and Achievement Delivery
The forward design of railway roadbed BIM is the core technology for improving design quality,efficiency,and achieving digitalization and intelligence in railway engineering construction.Due to the lack of representation of geographical and geological information scenarios such as unfavorable geology,special rock and soil,and environment-sensitive areas,designers cannot rely solely on BIM technology to comprehensively control the rationality of the entire roadbed construction site design scheme from macro to micro levels and at different particle sizes.This article takes railway roadbed as the research object and develops a three-dimensional modeling method for roadbed based on adaptive wires and feature sections,achieving BIM forward design of roadbed structure.A series of DEM processing methods such as block indexing,local cropping and network construction,prediction iteration and intersection of digital elevation models have been proposed,achieving deep integration of railway roadbed models and geographic scenes.Finally,based on the three-dimensional model of the roadbed,the output of deliverables such as two-dimensional cross-section and engineering quantity was completed.The application of BIM+GIS technology in railway subgrade 3D modeling design and achievement delivery has been achieved,improving the efficiency and quality of subgrade design,and achieving good results.
万方数据
维普
