Risk Assessment Method for Xiangxi Yangtze River Highway Bridge Based on Kent Index Method

Xiangxi Yangtze River Highway Bridge is a long span thrust arch bridge constructed in the Three Gorges Reservoir Area. It is of great significance to evaluate multiple potential risks for project safety management. In this paper, a risk assessment method for bridge construction in reservoir area based on Kent index method is proposed. Four major indexes of risk assessment model for bridge construction in reservoir area are determined: basic index, design index, construction index and risk loss index. Comparing with the risk acceptance criteria, the risk acceptance degree of the bridge construction in the reservoir area is evaluated, which indicates the direction of safety precaution and emergency plan compilation in the construction and ensures the safety of the bridge construction in the reservoir area. The results show that the model has strong practicability and effectiveness, and can provide reference for engineering management departments to realize bridge risk assessment and control.