Parameterized modeling and safety simulation of shield tunnel based on BIM-FEM automation framework

To address the challenges of low modeling efficiency and data loss in traditional methods, an automated numerical simulation analysis framework is proposed to enhance the safety simulation and control of complex underground engineering. This framework facilitates precise interaction between building information modeling (BIM) and finite element method (FEM) models while automating tasks like material property assignment, construction simulation, and high -quality mesh generation. Using this framework, the impact of the constructing a new shield tunnel beneath an existing tunnel is investigated based on actual cases. The settlement displacement simulated by the existing tunnel was compared with the monitoring results, verifying the reliability of the simulation analysis framework. It is demonstrated that the proposed framework achieves a simulation error 69.34% lower than previous studies. The framework enhances the stability and integrity of information transmission, improves the efficiency of modeling and calculation, and provides new ideas for automated modeling and simulation analysis.