【摘要】 本文采用了突变理论中的尖角型突变模型，研究了圆形洞室岩爆发生的物理过程。不仅更加深刻认识了洞室岩爆的失稳本质，而且得到了在岩爆工程治理中有价值的临界洞室塑性区深度，还给出了岩爆发生后洞室周边的突跳收敛和所释放出来的能量，同时，探讨了各种岩石力学参数对岩爆发生的影响。更多还原

【Abstract】 By means of CUSP model of catastrophe theory,this paper has studied the physics process of rockburst occured on circular chamber.The paper has not only described the instability process of rockburst more deeply,but also got the critical depth of plastic softening area of chamber that is valuable in the controlling engineering of rockburst.The chamber displacement jump and energy liberation have been derived. The influence of rock parameters on the rockburst has been discussed。更多还原