摘要
在煤矿瓦斯抽放作业中,取得钻孔有效抽放半径,就可以合理布置抽放钻孔以达到最优设计、最小工程量和最佳抽放效果。分析了聚隆矿井瓦斯抽放能力与瓦斯压力,钻孔瓦斯衰减系数等影响因素之间的关系,通过数学模型预测抽放半径的范围,提出了测定聚隆煤矿2#煤层瓦斯抽放影响半径的设计方案。
In the work of coal mine gas drainage,getting effective drilling drainage radius could reasonably layout the drainage drilling,and get the optimal design,least engineering quantity,best drainage effect.The paper analyzes the relationship between the ability of gas drainage and the influence factors such as gas pressure,drilling gas attenuation coefficient.The paper predicts the range of drainage influence radius through the mathematic model,proposes the design scheme for determining the No.2 coal seam gas drainage influence radius in Julong Coal Mine.
出处
《煤矿安全》
CAS
北大核心
2013年第7期123-125,共3页
Safety in Coal Mines
基金
国家科技重大专项资助项目(2011ZX05041-003-001)
关键词
钻孔有效抽放半径
瓦斯压力
极限抽放时间
钻孔布置
drilling effective drainage radius
gas pressure
limit drainage time
drilling layout
