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本文首先对煤与瓦斯突出冲击波的形成过程进行了分析,然后研究了突出冲击波的初始能量.根据冲击波理论与相关资料分析得出突出冲击波属于弱冲击波,并给出了一组计算冲击波参数的常用关系式.突出冲击波传播衰减与冲击波的初始能量、传播距离、巷道摩擦阻力特性等因素有关,最后给出了突出冲击波传播规律的数学关系式.研究结果有助于了解突出后的气流动力演化规律,以及确定突出影响的范围,从而采取有效的措施进行预防控制.
In this paper, the formation process of shock wave in coal and gas outburst is analyzed firstly, and then the initial energy of outburst shock wave is studied.According to the shock wave theory and related data analysis, the outburst shock wave belongs to the weak shock wave and a set of commonly used parameters The relationship between the shock wave propagation attenuation and the initial energy of the shock wave, the propagation distance, the frictional resistance of the roadway and other factors are given. Finally, the mathematical relation between the propagation laws of the shock wave and the laws of the air flow dynamics is given. , And to determine the scope of the outstanding impact, so as to take effective measures for prevention and control.