基于BIM的地下管线三维自动建模研究与应用

Research and Application of 3D Automatic Modeling of Underground Pipeline Based on BIM

针对地下管线施工的难点,通过对地下管线施工的难点进行总结,给出了利用BIM技术辅助地下管线施工的新方法,并描述了在某地铁项目中的实际应用情况。针对已有的三维建模软件进行二次开发,解决复杂地下管线的三维建模效率低的难题。基于创建好的三维地下管线及窨井模型,与地下构筑物及周边环境模型进行结合,能直观显示各构筑物之间的相互关系。结果表明,BIM技术能快速有效检测管线与地下构筑物之间的碰撞,能对地下管线迁改方案进行可视化分析,对管线的施工提供帮助。

This paper summarizes the difficulties of underground pipeline construction presents a new method of using BIM technology to assist underground pipeline construction,and describes the actual application in a subway project because of the difficulties of underground pipeline construction.In order to solve the problem of low efficiency of 3D modeling of complex underground pipelines,the existing 3D modeling software was developed.Based on the established three-dimensional underground pipeline and inspection well model,it can be combined with the underground structure and the surrounding environment model to visually show the relationship between each structure.The result showed that BIM technology can quickly and effectively detect the collision between pipelines and underground structures,conduct a visual analysis of the underground pipeline relocation scheme,and provide assistance for pipeline construction.