Coal and gas outburst is the direct reason of mine accidents,so it is very important and meaningful to predict condition of methane outburst accurately and timely.

• 煤与瓦斯突出是目前导致井下事故的直接原因,及时准确地预测瓦斯突出情况,对于保障井下安全生产有着十分重要地意义。