Risk Situation Analysis on Ventilation System Based on Five-Element Connection Number
In order to determine the risk situation of ventilation system in underground metal mines more scientifically and reasonably,on the basis of constructing the reliability evaluation index system of ventilation system,the interval analytic hierarchy process(IAHP)was used to determine the weights of indexes,and the risk evaluation model of mine ventilation system based on the five-element connection number set pair analysis method was established.A copper-nickel mine was taken as an example for analysis.The results show that the reliability of the mine ventilation system is good,and the evaluation results are consistent with the actual situation of the mine,which verifies the adaptability of the five-element connection number set pair analysis method in the reliability evaluation of the mine ventilation system.The model can objectively and comprehensively reflect the certainty and uncertainty in the reliability evaluation process of ventilation system,and realize the combination of static and dynamic evaluation of ventilation system,which can provide new ideas for similar mine evaluation work.