Research on Digital Delivery Standard of Land Transportation Infrastructure Design Data
In order to standardize the design and delivery of digital results of land transportation infrastructure engineering such as highway and railway engineering,ensure the integrity,correctness and universality of the design data transferred to the construction phase,and improve the utilization rate and digitalization degree of design data,this paper,with reference to the research on the current situation of digital delivery of land transportation infrastructure design data at home and abroad,studies and formulates the digital delivery standards and delivery contents(descriptions,attachments,drawings and molds)of land transportation infrastructure design stage(feasibility study,preliminary design and construction drawing design)on the basis of two-dimensional design delivery of railway projects and three-dimensional design data.The deliverables are divided into structured data,3D information model and unstructured data.The structured data is stipulated on UML class diagrams and metadata subsets to sort out the relationship between services,and XML SCHEMA is adopted for digital delivery.The three-dimensional information model requires the delivery of the model in IFC format,the delivery content,depth requirements and model expression requirements(basic model+reference model),information submission requirements,etc.Unstructured data is generally approved online in PDF format or tabular form.The standard stipulates the definition of BIM model,structured and unstructured expressions with attribute association mapping and standardized digital delivery standard process.It realizes the non-destructive transmission standard of highway and railway land transportation design data,solving the problem that computer can only recognize design delivery data poorly with low data reuse rate,and lays a foundation for digitization and intelligence of highway and railway land transportation industry in the full life circle.
land transportationdelivery standarddesign phasestructured data3D information model
万方数据
