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煤巷掘进工作面前方出现的煤炮声是煤与瓦斯突出的一种预兆。以乌兰煤矿5868回风顺槽煤巷掘进工作面为工程实例,分析了煤炮声出现的原因,并提出了更改掘进方式、降低掘进速度以及减小工作面局部防突措施控制范围等对策。结果表明,在采取了相关措施后,煤巷实现了安全顺利掘进,且未出现煤炮声等动力现象。
The coal cannon sound appearing in front of coal tunneling face is a harbinger of coal and gas outburst. Taking Wulan Coal Mine 5868 return wind tunneling coal face driving face as an example, the reason of the coal cannon sound is analyzed. Some countermeasures are given, such as changing the driving way, reducing the driving speed and reducing the control scope of the local outburst prevention measure . The results show that after the relevant measures have been taken, the coal roadway has been safely and successfully driven, and no power phenomenon such as coal cannon sound has appeared.