Dynamic Risk Evaluation of Unsafe Behaviors of Subway Construction Workers Based on SPA-MC
An index system was established from four dimensions,which were organizational management factors,individual factors,environmental factors and technical factors,and a dynamic evaluation model for the unsafe behavior risk of subway construction workers was built on the basis of SPA and MC.Finally,a subway project taken as an example,the risk status of unsafe behavior of operators in 16 construction periods was dynamically evaluated and predicted.The results show that the risk of unsafe behavior of subway construction workers is low and the set pair potential and pessimistic potential develop to the low risk level.The steady-state connection degree is calculated as homogeneity,strong power,basic security,and a trend of good development.The case shows that the evaluation model can reflect the risk status of unsafe behavior of construction workers scientifically and reasonably,which provides a new evaluation method for subway construction enterprises to dynamically evaluate the risk of unsafe behavior of construction workers.