摘要
根据实验,论述了热负压对独头巷道工作面抽出式通风风流结构的影响,推导对流分层长度与对流分层风速的计算式,从而得出有效作用长度的计算公式.按此公式计算所得之值与实测值基本一致.
Based upon experiments,this paper deals with the effect of heat negative pressure head on air-flow structure of exhaust ventilation in blind heading,and derives an equation for calcalating the length and the wind velocity of convection layer.The value obtained by this equation is basically in agreement with actually-measured one.
