浅议顶板走向钻孔抽放采空区瓦斯数值模拟和分析.doc

浅议顶板走向钻孔抽放采空区瓦斯数值模拟和分析 顶板走向钻孔抽放采空区瓦斯数值模拟和分析 英文标题roof trend bore is smoked put select imitate of numerical value of empty area gas and analysis 文章标号x9tu 文章级别硕士论文 本篇论文剩余部分，请联系九旭论文代写网站客服qq论文写作1210196822 论文发表 739878127 论文咨询1210196822②,联系电话013155803009。 关键词 采空区; 瓦斯抽放; 顶板走向钻孔; 数值模拟; 梗概 针对“u“型通风工作面采空区上隅角轻易积聚瓦斯,以渗流理论为基础,根据气体扩散定律和质量守恒定律,建立了顶板走向钻孔抽放采空区瓦斯流场模型。在visual-basic6.0平台上,利用工程软件surfer模拟了抽放钻孔四周瓦斯压力场。结果表明,煤体自身所具备的条件和抽放瓦斯的技术条件是影响瓦斯抽放量的主要因素,采取诸多因素相结合的切实可行方案,顶板走向钻孔抽放采空区瓦斯可以取得良好的效果,在技术上是可行的。 英文梗概 it is easy to pick part of the border on empty area in the light of “u“ ventilated working face accumulative gas, it is a foundation with seep theory, diffuse according to gas law and quality conversation law, built roof to move toward bore to smoke put collect empty area gas to shed a model. on visual-basic6.0 plat, use simulation of engineering software surfer smoke put gas controls field of force all round bore. the result makes clear, the requirement that place of coal body self has and obtaining the technical condition that puts gas is the main factor that affects gas to take to the limit of ones capacity, adopt the practical plan that photograph of a lot of element combines, roof trend bore is smoked put collect empty area gas to be able to obtain favorable res 上一页 1 2 下一页