摘要
阐述了利用预裂爆破技术松动煤体、增加煤层裂隙,提高抽采效果,有效降低煤层瓦斯突出危险和风排瓦斯量的技术过程。
Preshearing blasting technique is used to increase the fissures in coal body to improve the effects of mine gas extraction. This greatly reduces the danger of gas outbursts from coal seams and also reduces the quantity of mine gas vented into the air.
出处
《中国煤炭》
北大核心
2009年第3期52-54,共3页
China Coal
关键词
爆破
抽采
防突
blasting, gas extraction, outburst prevention
