轻放工作面抽放瓦斯高位钻孔的设计

Design for drawing out gas with high position boring at coal face

以石台煤矿 2 3113轻放工作面为例 ,介绍了采煤工作面高位钻孔抽放瓦斯的原理。

Take Shitai coal mine 23113 coal face for example,introduce the principle,design method and notice of drawing out gas with high position boring at coal face.