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分析了沿沟煤矿“11·8”石门揭煤特大型煤与瓦斯突出并诱发底板岩层冲击地压事故,并通过煤岩体的稳定性分析和煤岩体受扰动后拉应力的计算阐述了煤与瓦斯突出诱发冲击地压的力学机理,最后对事故原因进行了分析并提出了对策。
This paper analyzes the accident of large-size coal and gas outburst in the coal mines exposed along Shigou coal mine and induces the rock burst under pressure. Based on the stability analysis of coal and rock mass and the calculation of tensile stress after disturbed coal and rock mass The mechanics mechanism of rock burst induced by coal and gas outburst is expounded. Finally, the cause of the accident is analyzed and the countermeasures are put forward.