考虑煤弹性能的瓦斯突出冲击波超压计算模型

Gas Outburst Shock-wave Overpressure Calculation Model With the Consideration of Coal's Elastic Energy

基于能量守恒理论,通过理论分析推导出了吨煤弹性潜能的近似计算公式,进而根据气体动力学理论得出了煤与瓦斯突出冲击波产生的入射超压和反射超压的定量解析计算方法,算例分析结果表明:计算公式与实测值基本一致。突出冲击波超压解析计算方法考虑了煤岩多参数的综合影响,可以为巷道内设施作用力的计算提供参考。

Based on the energy conservation theory, the approximate calculation formula of elastic potential is deduced through theory a- nalysis, then according to the theory of gas dynamics, the quantitative analytic calculation method of incident overpressure and reflec- tion oveq^ressure generated from the gas outburst shock wave is achieved. Finally, an example analysis results show that the calculation formula and the measured values are coincident. The analytic calculation method considers the comprehensive effect of the coal - seam parameters, which carl provide the reference for the calculation of tunnel facilities force.