摘要
为了研究"三软"不稳定单一厚煤层底抽巷穿层钻孔的有效抽采半径以及相应的预抽期,建立起钻孔周围煤体瓦斯流动方程,并利用COMSOL-Multiphysics软件对郑州矿区某矿二1煤的穿层钻孔进行数值模拟。
To study the gas drainage effective radius of layer-through drilling hole in ＂three soft＂ unstable single thick coal seam and the corresponding pre-drainage time, the gas flow equations were created in the seam around the drilling hole, COMSOL-Multiphysics was used to numerically simulate the situation of the layer-through hole in the II1 coal seam.
出处
《煤炭技术》
CAS
北大核心
2016年第2期192-194,共3页
Coal Technology
关键词
瓦斯抽采
穿层钻孔
数值模拟
有效抽采半径
抽采率
gas drainage
layer-through borehole
numerical simulation
effective radius
drainage rate
