高瓦斯低透气性薄煤层地面瓦斯抽采井设计及优化  

Design and optimization of surface gas drainage and extraction well for underground high gassy low permeability thin seam

作　　者：张东升[1,2] 范钢伟[1,2] 任天祥[3] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116 [2]煤炭资源与安全开采国家重点实验室,江苏徐州221008 [3]澳大利亚卧龙岗大学土木采矿与环境工程学院

出　　处：《煤炭工程》2010年第8期4-7,共4页Coal Engineering

基　　金：中国矿业大学煤炭资源与安全开采国家重点实验室自主研究课题(SKLCRSM08X2);国家自然科学基金青年基金资助项目(50904063);中国矿业大学青年科研基金项目(2008A003;2009A001)

摘　　要：地面井瓦斯抽采技术是解决薄煤层煤与瓦斯安全高效共采的主要途径。针对铁法矿区小青矿高瓦斯低透气性刨煤机工作面,通过工程实践和理论分析,确定出了地面井抽采瓦斯技术参数;利用CFD(Computational Fluid Dynamics计算流体力学)模拟,得出了薄煤层长壁工作面地面井抽采瓦斯过程中瓦斯流动规律,并通过地面井(群)位置的优化,提出了地面井布置原则。该项技术的开发,为我国高瓦斯低透气性薄煤层煤与瓦斯安全高效共采提供了新的模式。The surface well gas drainage and extraction technology is the main access to solve the safety and high efficient joint mining of the thin seam and gas.According to the plough coal mining face in high gassy and low permeability seam,the project practices and the theoretical analysis was applied to determinate the technical parameters of the surface gas drainage and extraction well.The CFD（Computational Fluid Dynamics） simulation was applied to get the gas flowing law during the surface well drainage and extraction process of the thin seam longwall mining face.With the optimization of the location for the surface gas wells（or group）,the principle of the surface gas well layout was provided.The development of the technology had provided a new mode for the safety and high efficient joint mining of the coal and gas in the high gassy and low permeability thin seam in China.

关 键 词：薄煤层 低透气性 瓦斯抽采 地面井 CFD 

分 类 号：TD712.6[矿业工程—矿井通风与安全]