关于顺层钻孔瓦斯抽采半径及布孔间距分析

Analysis of gas drainage radius and spacing of holes in borehole

晋城煤业集团长平煤矿为高瓦斯矿井,有效测定出长平煤矿瓦斯的有效抽采半径,确定出合理的顺层钻孔间距大小,对于矿井安全开采工作至关重要。通过使用测定钻孔周围煤矿特定时刻的瓦斯含量方法,对晋城煤业集团长平公司的开采工作面的瓦斯分布情况展开研究,并针对顺层钻孔瓦斯抽采半径及其布孔间距进行了重点分析,有效提高了煤矿瓦斯抽采效率。

Changping Coal Mine of Shanxi Jincheng Anthracite Coal Mining Group is a high gas mine.It is very important to measure the effective gas drainage radius and determine the reasonable borehole spacing along the coal seam for the safe mining of the mine.By using the method of measuring the gas content of the coal mine around the borehole at a specific time,the gas distribution in the mining face of Shanxi Jincheng Anthracite Coal Mining Group Changping Company is studied,and the gas drainage radius and spacing of the borehole along the seam are emphatically analyzed,which effectively improves the gas drainage efficiency of the coal mine.