顺层钻孔有效抽采半径实验研究  

Experimental Study on Effective Extraction Radius for Bedding Hole

作　　者：武磊[1] 戴广龙[1] 杨志磊[1] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001

出　　处：《煤矿安全》2013年第5期4-6,共3页Safety in Coal Mines

摘　　要：根据抽采目标即防止瓦斯浓度超限,运用抽采量和抽采时间的关系,结合抽采衰减负指数曲线积分数学修正计算得出抽采钻孔在不同抽采时间下的有效抽采半径,从而可根据工作面推进速度在不同的区域合理优化布置钻孔间距。According to the extraction purpose of preventing gas concentration overrun, using the relationship of gas extraction quantity and quantity time, combining with extraction attenuation negative exponential curve integral mathematical correction, the effective ex- traction radius in different extraction times is calculated, which optimizes the drilling spacing in different areas according to the digging speed.

关 键 词：顺层钻孔 抽采半径 抽采量 钻孔参数 抽采时间 

分 类 号：TD712.6[矿业工程—矿井通风与安全]