Coupling Study on Risk Factors of Safety Accidents in Chemical Enterprises Based on N-K Model

Abstract

In order to study the risk coupling characteristics of chemical safety accidents, risk classification and risk factor identification of chemical safety accidents are carried out, the coupling mode of chemical safety accident risk factors is analyzed, and an N-K model based on complex network is constructed. Based on the data of major chemical safety accidents in China from 2010 to 2020, the probability and risk coupling values of different risk coupling forms are calculated and the coupling forms with strong coupling are analyzed. The results indicate that the more risk factors involved in the coupling, the greater the risk possibility of safety accidents. In the risk coupling, management and equipment technical factors are the key coupling factors, so management and equipment maintenance should be strengthened. The coupling form with strong coupling should be avoided as far as possible to reduce or eliminate the occurrence of chemical safety accidents.