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在材料力学和矿山压力理论的基础上,建立了采动底板断层活化突水的解析力学模型。综合考虑断层面及其附近的受力条件,并结合水压力推导出采动底板断层活化突水的相关公式,得出了在临界突水条件下断层活化突水的水压和开采深度的相关公式,并对该公式相关参数进行了讨论。结合郑州矿区超化煤矿22081工作面断层活化突水实例进行应用,通过计算得出其理论与实际情况是基本吻合的。进而说明该力学模型及其相关公式可以作为采动底板断层活化的判据之一。
On the basis of material mechanics and mine pressure theory, the analytical mechanics model of active water inrush from coal mining floor is established. Taking into account the stress conditions in the fault plane and its vicinity, and combining with the water pressure, the correlation formula of active water inrush from fault of mining floor is deduced, and the correlation between hydraulic pressure and mining depth of active water inrush under critical water inrush condition is obtained Formula, and the parameters of the formula were discussed. Combined with the example of fault activation and water inrush in 22081 working face of Chaohua Coal Mine in Zhengzhou Mining Area, the theory and actual situation are basically consistent. Further, the mechanical model and its related formulas can be used as one of the criteria for the active fault of the mining floor.