Objective To evaluate the risk of gas explosion based on sample data.Methods The historical data were collected by means of literature review and field investigation,and the main unsafe factors causing gas explosion were analyzed.Using the acci-dent tree analysis method to study data characteristics,classify and identify risks,using the Analytic Hierarchy Process and introduc-ing the game theory combination method to optimize the calculation of weights,quantitatively analyze the risk level of unsafe fac-tors that cause gas explosion accidents.Results The safety grade of coal mine gas prevention and control and the quantitative value of the structure importance of each unsafe factor were obtained.Conclusion Combined with various dangerous unsafe factors,the safety evaluation of the whole gas prevention safety management system can provide theoretical basis for accident prevention.
关键词
瓦斯爆炸/事故树/层次分析法/安全评价
Key words
gas explosion/accident tree/Analytic Hierarchy Process/safety evaluation