矿井通风系统的好坏,直接关系着井下职工的健康和安全,同时对劳动生产率和开采经济效果也有着重大影响。关于如何评价通风系统这个问题,已往曾有不少研究,并提出过一系列指标。这些指标从不同侧面反映了通风系统的经济性和安全性,对通风系统的管理和设计都有一定的意义。但是,它们却有一定的局限性,难 Mine ventilation system is good or bad, is directly related to the health and safety of underground workers, at the same time on labor productivity and mining economic impact also has a significant impact. There have been quite a few studies on how to evaluate the ventilation system and have put forward a series of indicators. These indexes reflect the economy and safety of the ventilation system from different aspects and are of certain significance to the management and design of the ventilation system. However, they have certain limitations and difficulties