Study on comprehensive risk assessment method for provincial coal mine accident

In view of problem that risk assessment for provincial coal mine lacks theory and method, a comprehensive risk assessment method for provincial coal mine accident was proposed: first of all, quantized value of damage extent and occurrence probability of risk indicators of coal mine accidents were assessed and scored by experts to construct comprehensive judgment matrix; then AHP was used to determine weight of each risk module; and finally, overall risk level of risk modules were calculated. The proposed method lays theoretical and practical basis for risk management of provincial coal mine accidents by generality research of risk assessment of regional coal mine accidents.