高突厚煤层高位钻孔抽放技术参数优化  

Parameters Optimization of High Level Boreholes Drainage Technology in High Outburst Thick Coal Seam

作　　者：毕德纯[1] 薛佩峰 杨兰海 

机构地区：[1]辽宁石油化工大学,辽宁抚顺113008 [2]郑州鹤郑涉村煤业有限公司,河南巩义451275 [3]鹤壁煤电股份有限公司九矿,河南鹤壁458010

出　　处：《煤矿安全》2012年第10期155-157,共3页Safety in Coal Mines

摘　　要：为了准确分析高位钻孔的效果,基于高位钻孔瓦斯抽放理论,在工作面高位钻场每个钻孔安置1个孔板流量计和1个测气孔,根据工作面的进尺实测每个钻孔管路上的流量和瓦斯浓度,并通过计算得到该钻孔的瓦斯混合流量和瓦斯纯量。分析抽放钻孔各种参数并进行优化,得出高效合理的高位抽放钻孔布置方式。In order to accurately analyze the effect of high level boreholes,based on high level boreholes gas drainage theory,an orifice meter and a measured-gas bore are installed in each borehole of working face high level drill field.The gas flow and concentration in each borehole pipeline are measured according to the drilled footage,and the gas mixed flow and the gas scalars of the borehole are achieved by calculating.By analyzing and optimizing various parameters of drainage borehole,the layout of efficient and reasonable high level drainage borehole is obtained.

关 键 词：瓦斯抽放 高位钻孔 瓦斯流量 钻场参数 优化 

分 类 号：TD712.6[矿业工程—矿井通风与安全]