中文摘要：

通风系统是井下矿山的重要组成部分之一,在生产实践中对其进行安全综合评价具有重要意义。首先在查阅相关文献的基础上,将影响矿井通风系统的主要因素归纳为风量（风速）合格率、风源风质合格率、井下作业环境空气质量合格率、矿井有效风量率、主扇装置效率和风量供需指数等6个指标;在此基础上,建立通风系统评价的可拓模型,然后利用变异系数法和层次分析法,分别得到上述指标的权重,再利用博弈论对以上权重进行综合,用综合优化后的权重对通风系统进行评价;最后结合某矿井对该模型进行了验证,得出：该矿井通风系统的安全评价等级类型为中等（D3）,综合评价值与实际情况吻合。

英文摘要：

Ventilation system is an important part of the underground mine,and its comprehensive safety evaluation is of great significance in the production practice.Based on the related document,factors affecting the mine ventilation system are summarized as six indexes：qualified rate of air volume（wind speed）,qualified rate of air sources and quality,qualified rate of air quality in underground working environment,the available airflow rate of mine,efficiency of the main fan and air volume index of supply and demand.On this basis,the extension model of ventilation system evaluation is set up,and then the weights are integrated by game theory which be calculated respectively in advance by the variation coefficient method and the analytic hierarchy process.The integrated weight is used for evaluating the ventilation system.Finally,this model has been verified combining with the present situation of a mine ventilation system.The conclusion is that the safety of the mine ventilation system evaluation grade is medium（D3）,and the comprehensive evaluation result is coincided with the actual situation.