Data-Driven Safety Assessment for Shield Tunnel Excavation: Interoperability Between Parametric Modeling and Numerical Simulation

Shield tunnelling is of high risk due to the significant uncertainties of construction parameters and underground space. Numerical simulation technique is an indispensable process to evaluate the risks during shield tunnel excavation with reasonably low cost. Benefiting from the application of parametric modeling technology such as building information modeling (BIM), the interoperability between a parametric model authoring tool and numerical simulation program has been developed in a tunnel project, which can optimize engineering design and enhance risk assessment of engineering construction. An extensive literature review is also conducted to describe the data-driven safety assessment of shield tunnel excavation that carried out by the interoperability approaches, starting from the four aspects: parametric modeling for shield tunnel excavation, deterministic safety assessment (DSA) driven by basic design data, probabilistic safety assessment (PSA) supported by statistical data and real-time analysis (RTA) conducted by monitoring data. The pros and cons of the prior art are preliminarily discussed.