Probabilistic analysis of subway station excavation based on BIM-RF integrated technology

Abstract

In the past decade, BIM technology has developed considerably, especially in the building industry. Although BIM technology has excellent potential in promoting information and digitization technology in the construction industry, its advantages still cannot be fully utilized during subway station excavations, and engineering computations based on complex theory cannot be well performed in the BIM technology. Particularly, with the rapid development of subway engineering and considering the great uncertainties in soil properties, it is necessary to improve the engineering management and risk assessment in construction process. In this paper, a BIM-RF integrated technology for performing probabilistic analysis of BIM-based subway station excavation based on random field theory (RF) is proposed to meet practical needs. Specifically, a three-dimensional parametric modeling method in Revit software is introduced. Then, a process of probabilistic analysis combined with RF theory for subway station excavation is presented. In the BIM-RF integrated framework, the necessary information for engineering computations is decoded from the BIM model; combined with the generated RF, a probabilistic analysis based on Monte Carlo simulations is performed to provide an engineering risk assessment. The BIM-RF integrated technology enables comprehensive engineering computations to be implemented in analyses of BIM-based subway station excavation and can improve the expandability of BIM technology.