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基于热传导理论,推导出煤矿采空区顶板岩石摩擦表面的最大闪温表达式,并结合实际在理论层面上分析了岩石摩擦引燃瓦斯的可能性和引燃因素,结果表明岩石摩擦表面的闪温足以点燃瓦斯,顶板岩块摩擦引燃瓦斯的能力受岩块的物理及热力学性质、岩块的力学性质、摩擦表面的结构特性、顶板岩层的结构尺寸、载荷、岩块间的相对滑动速度等因素影响。
Based on the theory of heat conduction, the maximum flashover expression of rock friction surface in coal mined area is deduced. Combining with the actual situation, the possibility and ignition factor of rock friction igniting gas are analyzed. The results show that the flash The ability to ignite gas at a sufficient temperature to ignite the gas, the ability of the roof rock to frictionally ignite the gas, is influenced by the physical and thermodynamic properties of the rock, the mechanical properties of the rock, the structural characteristics of the friction surface, the structural dimensions of the roof rock, And other factors.