【摘要】 地下工程钻爆开挖过程中 ,通风排烟是重要的一环。本文以费克定律为基础 ,得出了炮烟扩散过程中有毒气体浓度的时空分布表达式。并针对吸出式通风 ,讨论了可能出现的炮烟停滞区中炮烟浓度的计算方法更多还原

【Abstract】 Ventilation is a very important process in rock excavation by blasting in underground engineering. Based on Fick Theory, an expression of the concentration of toxic gases in blasting fumes is deduced in this paper. With respect to aspirating ventilation, computing method is discussed to analyze the concentration of blasting fumes in stagnation area.更多还原