Application Research of BIM in the Whole Life Cycle of Highway Mountain Tunnel

Based on the Yanglin Tunnel of Kunming Expressway in Yunnan Province, combined with BIM technology, the research of tunnel parametric modeling, construction information management and BIM model and numerical model interaction method was carried out. Using Autodesk Revit software platform and based on Dynamo visual programming technology, a series of node packages for parametric modeling of highway mountain tunnel were developed, which effectively created tunnel route model, tunnel lining model, tunnel support model and geological model. Automatic procedures were developed for parameter information creation and input, and mass import of tunnel engineering data into BIM model was realized. The model interaction between Revit and Midas GTS NX was also realized based on the intermediate format file ". sat", and the model in the modeling section was simulated and fed back to the model. The research results can provide technical reference for the application of BIM technology in the design, construction, operation and maintenance of the whole life cycle of highway mountain tunnel and other underground belt projects.