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本文分析和探讨了爆破激发煤瓦斯突出的原因。并利用突变理论中的双尖点突变模型 ,研究了爆破振动对煤瓦斯突出的诱导 ,指出当扰动力幅和扰动频率达到一定值时 ,会引起煤体结构振幅的突跳 ,从而诱发煤瓦斯突出 ;扰动频率与煤体结构的自振频率之比小于 112 η2 +1是爆破振动诱发煤瓦斯突出的必要条件
This paper analyzes and explores the causes of gas explosion caused by blasting. By using the double-pointed point mutation model in catastrophe theory, the study on the induction of coal gas outburst by blasting vibration is conducted. It is pointed out that when the disturbance amplitude and disturbance frequency reach a certain value, it will cause sudden jump of the amplitude of coal body structure, ; The ratio of disturbance frequency to the natural frequency of coal structure is less than 112 η2 +1 is the necessary condition for blasting induced coal gas outburst