The results of the gas outburst simulation experiments showed that there was no difference in an air-flow reverse phenomenon in air inflow roadway between the upward ventilation and downward ventilation when the seam angle is ranging from 0 to 32 ° .

煤层倾角在 0~32°内变化，突出瓦斯相似模拟实验结果，看不出 上行风和下行风对进 风平巷风流逆流现象有何差别。