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通过测定煤壁的瓦斯涌出强度和落煤的瓦斯解吸强度,建立煤壁和落煤的瓦斯涌出强度经验公式和瓦斯涌出量预测公式,从而建立综掘巷道的瓦斯涌出量预测模型。通过测定综掘巷道瓦斯涌出,对建立的计算模型进行验证。结果表明,煤壁和落煤的瓦斯涌出强度随时间的变化符合指数或双曲线关系,由该关系建立起的2种预测模型相互结合应用,能够很好地表达综掘巷道的瓦斯涌出规律。
By measuring the gas emission intensity of coal wall and gas desorption intensity of falling coal, empirical formula of gas emission intensity of coal wall and coal falling and prediction formula of gas emission amount are established, so as to establish gas emission prediction model of fully mechanized mining roadway . By measuring the gas emission from fully mechanized roadway, the established calculation model is verified. The results show that the gas emission intensity of coal wall and coal fall in line with exponential or hyperbolic relationship over time, and the two prediction models established by the relationship are combined with each other to well express the gas emission in fully mechanized roadway law.