摘要
有效抽放影响半径是确定钻孔布置参数以及评价抽放效果的重要依据,对其准确测定对煤与瓦斯突出的防治有重要价值。为了确定九里山煤矿二1煤层瓦斯抽放的合理参数,采用数值模拟的方式对不同抽放负压下软、硬煤的有效抽放影响半径进行了计算并加以比较分析。
The effective extraction influence radius is an important pursuance on determining the borehole layout parameters and evaluating drainage effect,accurate determination of which has important value in coal and gas outburst prevention.In order to determine the reasonable parameters of gas drainage for No.21 coal seam in Jiulishan coal mine,it implements calculation and comparative analysis for effective extraction influence radius of soft and hard coal under different negative pressure by using the numerical simulation.
出处
《煤矿安全》
CAS
北大核心
2012年第11期23-26,共4页
Safety in Coal Mines
基金
国家自然科学基金资助项目(50974056
51174081)
关键词
负压
数值模拟
有效抽放影响半径
negative pressure
numerical simulation
effective extraction influence radius
