矿井通风设计除要求安全外,还必须在经济上是合理的,使矿井通风费用,即每采一吨矿石的通风成本最低。矿井通风费用包括通风井巷的折旧费和维修费、通风设备折旧费、动力费、通风人员的工资、材料费以及通风仪表的购置和维修等费用。通风系统确定之后,通风井巷的投资,主要取决于通风井巷断面的大小及其 In addition to safety requirements for mine ventilation design, it must also be economically justifiable to minimize mine ventilation costs, ie, the cost of ventilation per tonne of ore mined. Mine ventilation costs include depreciation and maintenance of ventilation shafts, depreciation of ventilation equipment, power costs, ventilation staff salaries, material costs, and the purchase and maintenance of ventilation meters. Ventilation system is determined, the investment of ventilation shaft and laneway, mainly depends on the size of ventilation shaft section and its