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瓦斯流动方程能够很好地揭示煤层中瓦斯流动的规律,而瓦斯流动规律对瓦斯灾害防治至关重要。运用理论分析对煤层中瓦斯流动模型和流动方程进行了分析与研究。深部岩体的稳定存在状态是球体,而浅部岩体的稳定存在状态为椭球体。在此基础上,构建了瓦斯流动的椭圆形模型,推导出了二维瓦斯流动方程和三维瓦斯流动方程,并利用建立的瓦斯流动方程解释了煤与瓦斯突出的过程,分析并解释了防突规定中石门揭煤保护岩柱2 m和5 m的理论依据,并将该理论应用于涟邵牛马司矿石门揭煤抽放钻孔的布置设计中,取得了很好的效果。
Gas flow equation can well reveal the law of gas flow in coal seam, and the law of gas flow is very important to the prevention and control of gas disasters. Using theoretical analysis, the gas flow model and flow equation in coal seam are analyzed and studied. The stable existence state of deep rock mass is a sphere, while the stable existence state of shallow rock mass is ellipsoid. On this basis, an oval model of gas flow is constructed, two-dimensional gas flow equation and three-dimensional gas flow equation are deduced, and the process of coal and gas outburst is explained by the established gas flow equation, Provides the theoretical basis for the protection of rock columns exposed by Zhongshi Gate at 2 m and 5 m, and applies the theory to the layout design of the coal seam drainage borehole in Lianshou cattle seam department with good results.