煤矿安全2012，Vol.43Issue(10)：4-6,3.
基于COMOSOL的顺层钻孔有效抽采半径的数值模拟
Numerical Simulation on Effective Drainage Radius of Drill Hole Along Coal Seam Based on COMSOL
摘要
Abstract
In order to accurately determine the effective drainage radius of drill hole along coal seam, according to the Darcy~ law and the law of conservation of mass as well as the theory of gas flow and occurrence, the gas flow equation of gas extraction drill hole along coal seam was established to study the flow field of coal seam gas around the drilling. Taking Qinxin mine as an example, the gas flow equation was simulated under different drainage negative - pressure and drainage time by using COMSOL software, and the reasonable drainage negative -pressure, drainage time and the effective drainage radius were determined.关键词
瓦斯抽采/顺层钻孔/有效抽采半径/抽采负压/数值模拟Key words
gas extraction/drill hole along coal seam/effective gas drainage radius/drainage negative - pressure/numerical simulation分类
矿业与冶金引用本文复制引用
王兆丰,李炎涛,夏会辉,谭蓉晖..基于COMOSOL的顺层钻孔有效抽采半径的数值模拟[J].煤矿安全,2012,43(10):4-6,3.
