Modeling and Research for Underground Engineering Safety of Urban Rail Transit Based on Multiphase Flow

摘要

The underground engineering safety of urban rail transits is an important research direction in the research field of urban rail transit safety, and its state estimation reflects the characteristics of urban rail transit underground engineering, and then becomes a research difficulty and a key technology. Aiming at the problem, at first the underground engineering safety requirements and characteristics of urban rail transits were analyzed. Then, a multiphase flow model of the urban rail transit underground engineering safety state estimation was designed, and the relation of the state estimation and pressure testing location of the urban rail transit underground engineering safety were advanced. Moreover, the modeling structure, algorithm, simulation, and experiment of the urban rail transit underground engineering safety state estimation characteristics applied multiphase flow were particularly presented in detail. Finally, the experimental results prove that it is fast and accurate and provide the state estimation characteristic curve of the urban rail transit underground engineering safety.