Study on Construction Safety Risk Assessment of Railway Cable-stayed Bridge Based on Grey Relation Alanalysis-Cloud Model
Taking the Panlong Liujiang Bridge on Liuwu Railway as the research object,this paper discusses the construction safety risk assessment method based on the combination of grey relation analysis model and cloud model.In view of the complex risk factors in the construction of railway cable-stayed bridges,the structural characteristics and construction difficulties of cable-stayed Bridge River Delta were systematically analyzed.Subsequently,the key risk factors in the construction were identified by constructing a grey relation analysis-cloud model,the uncertainty is quantified.The results show that foundation pit collapse,out-of-control tension of cables and high-altitude fall are the main risk factors of bridge construction,which have high grey correlation degree and remarkable randomness.Based on this,the corresponding risk management countermeasures are put forward to ensure the safety of the construction process and the stability of the project quality.Through the research,the validity of grey relation analysis-cloud model in complex engineering safety risk assessment is verified.
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