摘要
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
The reason of coal gas outburst induced by blasting is analyzed,and how the vibration caused by blasting induces coal gas outburst has been discussed by means of the model\|tip mutation double in mutation theory.It is obtained that when disturbance frequency and amplitude amount to certain value,fierce jump of the amplitude of coal structure will occur,thus coal gas outburst is induced.The ratio of disturbance frequency to self vibration frequency of coal structure is below 112η 2+1is essential condition of coal gas outburst induced by vibration caused by blasting.
出处
《中国矿业》
北大核心
2000年第2期89-91,共3页
China Mining Magazine
基金
国家教委博士点基金资助项目!(96061109)
