基于BIM+GIS的水库三维数字资产构建与应用

Construction and application of 3D digital assets in reservoirs based onBIM+GIS

摘要:

随着水利行业的数字化转型，数据的资产价值日益凸显，BIM 和 GIS 数据是工程数字化的重要成果，也是宝贵的三维数字资产。以朱溪水库为例，研究 BIM 和 GIS 数据生产的优化方法，提出一种 Civil 3D + Revit + Dynamo多软件联合运用的大坝参数化建模方法，重复机械的建模工作由程序自动完成，提升水库建筑物 BIM 建模效率和质量；利用机载激光雷达采集库区地形，借助专业软件高效处理，得到地面点云和高分辨率数字高程模型；依托BIM + GIS 技术，经过数据轻量化、坐标配准和渲染发布，构建精准映射实体工程的数据底板和可视化场景，形成水库三维数字资产。在此基础上，拓展研究点云复核算量、BIM + VR 指导施工、设备运行工况可视化等应用场景，对水库数字资产的研究与实践具有借鉴意义。

Abstract:

With the digitalization of the water conservancy industry，the value of data assets is increasingly prominent.BIM and GIS data represent crucial outcomes of engineering digitization and serve as valuable 3D digital assets.Taking Zhuxi reservoir as a case，this article focuses on optimizing the production methods of BIM and GIS data.It introduces an approach that combines Civil 3D，Revit，and Dynamo software for dam parametric modeling，thereby automating repetitive modeling work and improving the effi ciency and quality of BIM modeling for reservoirstructures. By using airborne LiDAR to collect the terrain of the reservoir area and efficiently processing it withprofessional software，ground point clouds and high-resolution digital elevation models are obtained. Then，relyingon BIM+GIS technology，the study further involves data light-weighting，coordinate registration，and renderingpublishing to construct a precise mapping of physical project data and visualization scenarios，thus forming 3D digitalassets. On this basis，application scenarios are expanded and studied with point cloud review calculation，BIM+VRguidance for construction，and visualization of equipment operating conditions，which has signifi cant reference valuefor the research and implementation of reservoir digital assets.