上隅角抽采治理采煤工作面瓦斯的正交模拟优化  

Orthogonal Test Optimization with Numerical Simulation of Controlling Coal Face Gas Accumulation by Gas Drainage in Upper Corner

作　　者：张倩[1] 栗磊 马汉文 王俊东 孟建峰 栗伟 ZHANG Qian;LI Lei;MA Han-wen;WANG Jun-dong;MENG Jian-feng;LI Wei(Lu′an Vocational and Technical College,Changzhi 046204,China;Gas Research Institute,Lu′an Group,Changzhi 046204,China;Gas Inspection Team,Wangzhuang Coal Mine,Lu′an Group,Changzhi 046204,China)

机构地区：[1]潞安职业技术学院,山西长治046204 [2]潞安集团瓦斯研究院,山西长治046204 [3]潞安集团王庄煤矿瓦检队,山西长治046204

出　　处：《煤炭技术》2020年第8期133-135,共3页Coal Technology

基　　金：“十三五”国家科技重大专项(2016ZX05067006-001);潞安职业技术学院项目(1900051)

摘　　要：为了使采空区风流流动及瓦斯分布的数值模拟更加符合实际,基于采空区上覆岩层移动破断及裂隙演化的"O"形圈理论,研究煤矿井下采空区多孔介质的渗透特性,建立了正常回采期间煤矿采空区更符合实际的连续渗透率模型,并将该模型应用于五阳煤矿7601综放工作面上隅角抽采治理采煤工作面瓦斯的通风与抽放参数组合优化中。根据7601工作面现场实际情况建立CFD数值计算模型,根据正交试验方法设计了一个4因素3水平的正交试验,采用FLUENT软件平台对各试验进行数值模拟,选出了上隅角抽采治理采煤工作面瓦斯的优化参数组合,将优化后的参数应用到工作面生产中后,与模拟结果较为吻合,从而验证了模拟结果的可靠性。In order to well master the gas flow law and gas emission under goaf, based on "O" shape circle theory of mining overburden fissure, the actual continuous permeability distribution function in goaf was established. Using this function to orthogonal simulate and optimize the parameters of controlling the upper corner gas accumulation in No. 7601 fully mechanized top-coal caving face of Wuyang coal mine. Based on correlation theory, a 4 factor and 3 level orthogonal test was established.Uses the CFD software platform FLUENT to carry on the numerical simulation to each experiment,selected the optimization parameter combination and through numerical simulation verified the validity of this method.

关 键 词：采煤工作面 瓦斯抽放 正交试验 数值模拟 参数优化 

分 类 号：TD712[矿业工程—矿井通风与安全]