The result validatethe fact.It can be popularized as only changing the sequence and method of digging andimproving the safety status of coalmine and burst of gas without the big investment.

• 由于只对开挖顺序及方式进行了改变,而不必引入大的投资就可以改善煤矿安全状态及瓦斯突出,所以可以进行推广。