Evaluation on Safety Risk Factors for Hoisting Construction of Highway Railway Separation Bridge Based on Reverse Clustering Method
This article takes the lifting construction of the highway railway separation bridge as an example,and uses reverse clustering method to select 26 typical risk factors from five aspects.The safety risk factors of the lifting construction of the highway railway separation bridge are evaluated.The results show that the risk factor with the highest rank effect is illegal operation,with a value of 41.56,which is the main risk factor affecting the safety risk of the bridge lifting construction;the lowest impact on bridge hoisting construction is that the hoisting safety warning signs are not clearly managed on site,with a value of 11.11.The factors that have a high degree of impact on the safety risks of bridge hoisting construction are analyzed in the first and second categories,with personnel,on-site management,technical solutions,and other key factors affecting the construction of bridge hoisting.The risk factors below the average level are classified into the fourth and fifth categories,mainly including factors such as environment and equipment.Based on analysis,safety management measures are proposed for bridge hoisting construction,including safety management for crane leg operations,safety management for crane operators,safety management for construction site contact,and safety management for on-site protective personnel.
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