基于复杂网络的斜(竖)井施工事故致因分析OACHSSCD

To explore the risk evolution path of inclined(vertical)shafts construction accidents and i-dentify key contributing factors,Firstly,the grounded theory is used to code the accident investigation report at three levels and clarify the causal factors of inclined(vertical)shafts construction accidents.Secondly,based on theory of complex networks,the causal factors are treated as network nodes,and the correlation between factors is used as network edges to construct a causal network for inclined(verti-cal)shafts construction accidents.Then,Gephi software was used to visualize the causal network.Fi-nally,topological parameters such as node degree,proximity to the centre and clustering coefficient are analyzed to reflect the overall characteristics of the network and to identify the key causal factors affect-ing the construction accidents in inclined(vertical)shafts.The results indicate that the overall cluste-ring of the network is good,the average path is short,and the risk factors are closely related,making it prone to chain reactions.Passing through or entering hazardous areas,unstable dumping of machinery and equipment,poor geology,and inadequate prevention of"three violations"are key contributing fac-tors to inclined(vertical)shafts construction accidents.