煤的坚固性系数对瓦斯运移的影响  

The Influence of Coal Consistent Coefficiet on Gas Migration

作　　者：何明华 王珍[2,3] 袁梅[3,4,5] 杜育芹[3,5] 

机构地区：[1]贵州省动能煤炭技术发展服务有限公司,贵州贵阳550001 [2]贵州职业技术学院,贵州贵阳550023 [3]贵州大学矿业学院,贵州贵阳550003 [4]重庆大学煤矿灾害动力学与控制国家重点实验室,重庆400040 [5]贵州省非金属矿产资源综合利用重点实验室,贵州贵阳550003

出　　处：《煤矿安全》2012年第11期5-8,共4页Safety in Coal Mines

基　　金：贵州省国际科技合作计划资助项目(黔科合外G字[2010]7008号);重庆大学西南资源开发及环境灾害控制工程教育部重点实验室访问学者基金资助项目;贵州省科技厅社会发展攻关项目(黔科合SZ字[2009]3032);贵州大学研究生创新基金资助项目(贵大2011[06])

摘　　要：以不同坚固性系数条件下的三轴渗透实验数据为基础,结合渗流力学的基本理论,推导出考虑坚固性系数条件的瓦斯渗流方程,选取贵州五轮山8#煤层构建模型,并通过有限元软件COMSOL Multiphysics计算模拟,得出受坚固性系数影响时,煤层内瓦斯压力、瓦斯含量、瓦斯流速及瓦斯渗透率的变化规律,模拟结果与实验结论保持了较好的一致性。Based on the triaxial permeability experiment data under the condition of the different consistent coefficient,and combined with the basic theory of seepage mechanics,this paper deduced the gas seepage equation which took into account the condition of consistent coefficient,and built the model which was based on the No.8 coal seam of Wulunshan Coal Mine in Guizhou.The finite element software COMSOL Multiphysics was used to carry out calculation and simulation,it obtained the variation law of gas pressure,content,velocity and permeability in coal seams with the influence of consistent coefficient,the simulation results kept good consistency with experimental conclusions.

关 键 词：坚固性系数 渗透率 瓦斯运移 数值模拟 

分 类 号：TD712[矿业工程—矿井通风与安全]