工作面本煤层瓦斯抽采钻孔合理布置间距研究  

Research on rational layout interval of gas drainage borehole in seam of coal mining face

作　　者：李钢[1] 范喜生[1] 马丕梁[1] 樊少武[1] 王栓林[1] 

机构地区：[1]煤炭科学研究总院,北京100013

出　　处：《煤炭工程》2010年第2期27-29,共3页Coal Engineering

摘　　要：沙曲矿4#主采煤层具有突出危险性,严重制约了矿井的安全生产。文章利用煤层瓦斯的渗流理论和扩散理论建立了新的流动方程,结合沙曲矿煤层实际情况求出了满足抽采时间和抽采率要求的钻孔最大间距,作为本煤层采前预抽和边采边抽的合理布置间距,保证了钻孔施工的安全高效。The No. 4 seam as the main mining seam in Shaqu Mine had a outburst danger and had seriously restricted the mine safety production. The vadose theory and the diffuse theory were applied to establish a new flow equation. In the combination with the seam actual conditions of Shaqu Mine, the borehole max interval was obtained to meet the gas drainage time and gas drainage rate, which could the rational layout interval of the pre -drainage before the mining operation and mining while gas drainage to ensure the safety and high efficiency of the borehole drilling operation.

关 键 词：渗流理论 扩散理论 采前预抽 边采边抽 钻孔布置间距 

分 类 号：TD712.6[矿业工程—矿井通风与安全]