义安煤矿顶板走向高抽巷的层位选定OA
layer selection of extraction of high gas drainage roadways lying the strike of roof In Yi'an coal mine
为了解决义安矿工作面瓦斯涌出量大，上隅角瓦斯浓度经常超限问题，依据覆岩采动裂隙演化规律和“O”形圈理论，提出在工作面顶板布置高抽巷抽采采空区瓦斯，通过理论计算与数值模拟对采空区上覆岩层“两带”高度范围进行研究，确定裂隙带发育范围。而为了防止高抽巷被破坏，将高抽巷的设计层位选定为1.5倍采高。
In order to solve the gas emission quantity of Yi'an mine working face, the upper corner gas excess problem, on the basis of overlying fissure evolution law and "O" ring theory, proposed the layout of high level suction roadway in the working face roof to extract the gobs gas, through theoretical calculation and numerical simulation to study the ‘two zone' height of overlying strata in gobs, determined the fracture zone development scope. In order to p…查看全部>>
殷庆超;王恩营;刘度
河南理工大学资源环境学院，河南 焦作 454000河南理工大学资源环境学院，河南 焦作 454000河南理工大学资源环境学院，河南 焦作 454000
矿业与冶金
高抽巷数值模拟裂隙带
high level suction roadwaynumerical simulationfracture zone
《山东煤炭科技》 2015 (2)
58-59,62,3
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