摘要
本文提出了利用爆破技术的方法使煤层致裂,增加煤体的渗透性,提高瓦斯抽放率。以单个球形药包为例,初步探讨了煤体内部爆炸作用,并推导出混合粉碎区、裂隙区范围半径的理论计算公式。
It was introduced that the coal bed cracked by blasting technique to increase the infiltration of coal and methane drainage rate.The exploding effect of a single spherically packed explosive in unlimited coal medium was studied,and the formulas were deduced for calculation of the smashed area and cracked area.
出处
《煤矿爆破》
2010年第1期14-17,共4页
Coal Mine Blasting
关键词
渗透性
瓦斯抽放率
球形药包
内部爆炸作用
infiltration
gas drainage rate
spherically packed explosive
exploding effect
in unlimited medium
