In order to analyze the impact of multi factor coupling on gas explosion accidents in catering merchants,based on the qualitative analysis of the risk factors of gas explosion accidents in catering merchants based on grounded the-ory,the N-K model is applied to analyze the systematic coupling risk.Firstly,apply grounded theory to construct a risk factor model for gas explosion accidents in catering merchants,which includes 18 categories and 4 core categories;Second-ly,according to the type of coupling combination,it is divided into single factor,double factor,and multi factor risk cou-pling,and a coupling relationship diagram is drawn using Vensim software;Finally,the N-K model is used to quantitative-ly calculate the coupling risk values of various coupling forms.The results indicate that the more coupling factors there are in catering gas explosion accidents,the greater the risk value;The maximum risk value is generated by the coupling of four factors in the multi factor risk coupling,followed by the coupling of human material environmental factors;In the du-al factor risk coupling,the coupling between human and material factors is the largest.
catering merchantsgas explosion accidentsgrounded theoryrisk couplingN-K model
NETL
NSTL
万方数据
