地下开采矿山掘进工作面所需风量,按现行规定是分别按工作面作业人数、瓦斯涌出量、一次爆破炸药量(稀释炮烟)和风速这四个方面进行计算,取其最大值。但释稀炮烟的风量,计算公式多样,而且不同的公式计算结果也相差甚远,较为常用的公式计算出的数值大多偏大。延期电雷管的出现和巷道全断面一次爆破施工工艺的应用,因一次爆破药量较大而使得问题更为突出,岩巷最甚。特别是按1986年版《〈煤 According to the current regulations, the amount of air required for underground mining face excavation shall be calculated according to the number of working faces, gas emission, explosive charge (diluted gun) and wind speed respectively, whichever is greater. However, the amount of diluted gunpowder air volume, the calculation formula is diverse, and different formula calculation results are far cry from the more commonly used formula values ​​are mostly larger. Delays in the emergence of electric detonators and full blasting a full blasting construction process application, due to a large amount of blasting makes the problem more prominent, the most rock Lane. In particular, according to the 1986 edition of "