基于BIM技术的公路隧道参数化翻模研究与应用

Research and Application of Parameterized Reverse Modeling of the Highway Tunnel based on BIM Technolgy

基于C++开发的公路建筑信息模型(BIM),依据二维设计图纸逆向翻模,导入实地地理信息系统(GIS)等高线及影像数据资料建立地模,利用内置的BIM构件库模板参数化录入各项隧道组件数据,建立隧道BIM模型。根据实时隧道施工开挖围岩信息,进行隧道支护及超前支护类型实时变更,修改构件库参数逆向重新建模,能快速迭代实现对隧道BIM模型实时动态调整,完成隧道施工图优化、设计变更及工程量计算的实时联动,实现施工图与设计变更的数据共享,以期为今后相关隧道BIM技术应用提供一些借鉴。

Based on the highway BIM developed by C++,the reverse modeling was completed according to the two-dimensional design drawings,the field GIS contour and image data were imported to establish the ground model,the built-in BIM component library template was used to input the data of various tunnel component parameterically,and finally the tunnel BIM model was established.According to the real-time information of tunnel construction excavation surrounding rock,the tunnel support and advanced support types were changed in real time,the parameters of the component library were modified,and the model would be reconstructed in reverse.The fast iteration of data realizes the real-time dynamic adjustment of tunnel BIM model,it can complete the real-time linkage of tunnel construction drawing optimization、design change and engineering quantity calculation,and realize the data sharing of construction drawing and design change.It is hoped that the research results can provide some reference for the application of relevant tunnel BIM technology in the future.