三维地质模型在铁路勘察中的应用

Application of 3D Geological Model in Railway Survey

BIM技术具有三维可视化、多专业协同性、模拟性等特点,能够直观展示地层结构及地质信息,近年地质BIM技术在铁路勘察设计、工程施工及运营维护中逐步得到应用。地质BIM技术应用主要包含三维地质模型的创建与应用2部分,地质模型的创建是地质BIM技术应用的基础与核心,地质模型的应用是地质BIM技术在铁路工程项目的应用落地。基于三维地质模型可开展地质可视化、钻孔指导、辅助选线、断面批量剖切、隧道围岩分级、隧道超前地质预报、数值模拟等方面应用,展现了三维地质模型在铁路勘察中的实际应用,提高了铁路勘察的智能化水平。

BIM technology has such characteristics as 3D visualization,multi-professional coordination and simulation,and can visually display stratum structure and geological information.In recent years,geological BIM technology has been gradually applied in railway survey and design,engineering construction,operation and maintenance.The application of geological BIM technology mainly includes two parts,the creation and application of 3D geological model.The creation of geological model is the foundation and core of the application of geological BIM technology,and the application of geological model is the implementation of geological BIM technology in railway engineering projects.Based on the 3D geological model,it can be carried out geological visualization,drilling guidance,auxiliary route selection,batch section cutting,classification of tunnel surrounding rock,tunnel advance geological forecast,numerical simulation,etc.,which shows the practical application of 3D geological model in railway survey and improves the intelligent level of railway survey.