摘要
由于工程地质条件的复杂性、认知程度的局限性、可视化工具的局限性等原因,现有地质建模软件不能满足铁路工程BIM应用需求。依据《铁路工程信息模型数据存储标准》构建铁路工程地质BIM数据模型架构,结合铁路工程勘察设计的特点,提出快速、准确地将二维地质断面中地质界线及其属性信息自动化辨识的方法,进而建立地质BIM模型,并赋予IFC标准地质信息的一整套方法。自主研发了相关软件,充分利用既有二维地质成果,提升了二维地质信息提取、辨识效率,通过参数化、流程化交互式快速建立地质BIM模型,实现标准与应用的融合落地。该方法在京雄城际铁路等多项大型工程中得到成功应用,为进一步协同设计、虚拟施工、数字交付及智能服务等提供模型基础和信息支撑。
Due to the complexity of engineering geological conditions, the boundedness of cognition degree and the limitation of visualization tools, the existing geological modeling software can hardly meet the practical requirements of BIM in railway engineering. Therefore, the BIM data model structure of railway engineering geology is established as per the Data Storage Standards for Railway Engineering Information Model. Combined with the characteristics of railway engineering survey and design, the paper proposes the method of automatic identification of geological boundary and its attribute information in 2D geological section, establishes the geological BIM as well as a complete set of methods for IFC standard geological information. Relevant softwares are independently developed and the efficiency of 2 D geological information extraction and identification are improved, making full use of the existing 2D geological results. The geological BIM is quickly produced through parameterized, well-organized and interactive process, promoting the integration of standards and applications. This method has been successfully applied in many large-scale projects, such as Beijing-Xiong’an Intercity Railway, which provides model and information support for further collaborative design, virtual construction, digital delivery and intelligent service.
作者
李红旭
LI Hongxu(Geological Survey and Design Institfute,China Railway Design Corporation,Tianjin300251,China)
出处
《铁路技术创新》
2021年第5期43-48,共6页
Railway Technical Innovation
基金
中国铁路设计集团有限公司科技研究开发计划项目(2021A240405)。
