数值模拟在瓦斯抽放钻孔布置中的应用  

Application of Numerical Simulation in Gas Drainage Borehole Layout

作　　者：赵忠明[1] 张乐[1] 朱时东 席志渊[1] 

机构地区：[1]河南理工大学能源与科学工程学院,河南焦作454000

出　　处：《中州煤炭》2014年第6期54-56,59,共4页Zhongzhou Coal

摘　　要：为了获取合理的瓦斯抽放钻孔布置参数,以瓦斯渗流理论为基础,抽放钻孔周围径向流场为研究对象,建立了抽放钻孔周围瓦斯流动的数学模型。结合鹤煤九矿3104工作面具体开采条件,采用COMOSOL Multiphysics软件对钻孔瓦斯流场进行了数值模拟。实践表明:在该矿具体抽采条件下的瓦斯抽放钻孔布置参数是合理的。经抽放后效果检验,3104工作面消除了煤与瓦斯突出的危险性。In order to gain ideal borehole layout parameters of the gas drainage,a mathematical model of the flow equation for draining methane through boreholes was established to study the radial flow around drainage boreholes based on the theory of gas seepage. Ac- cording to the specific production conditions of the NO. 3104 working face of No. 9 Coal Mine of Hebi,the COMSOL Muhiphysics soft- ware was applied to the numerical simulation. The results prove that the borehole layout parameters of the gas drainage in specific condi- tion are reasonable. The testing results show that the danger of coal and gas outburst in NO. 3104 working face has been eliminated.

关 键 词：瓦斯抽放 钻孔 数值模拟 

分 类 号：TD713[矿业工程—矿井通风与安全]