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Analysis of Gas Drainage Methods in Gassy Thick Coal Seam Full -mechanized Caving Fare and Numerical Simulation
Author(s): 
Pages: 15-17
Year: Issue:  10
Journal: Safety in Coal Mines

Keyword:  综放开采瓦斯抽放顶板走向钻孔计算机数值;
Abstract: 以现有研究成果为基础,通过理论分析、现场实测、计算机数值模拟等手段,运用流体力学、弹塑性力学等理论基础进行运算和推导,对厚煤层综放面的瓦斯抽放方法进行了研究.在分析综放面瓦斯涌出特点和采空区瓦斯运移规律基础上,根据山西晋城永安煤矿实例,建立了煤层顶板上覆岩层移动的数值模型,确定了顶板瓦斯抽放钻孔布置的最佳位置和合理参数,设计出合理的瓦斯抽放方案.
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