摘要
本文详细论述了冲击地压与突出的特征,并深刻地研究了二者的统一机制,进而提出了突击的数学模型:失稳判据与控制方程。并给出了失稳理论的数值分析方法,提出了孔隙压初应力分析法与失稳判断的单位载荷法及FEM程序框图。基于以上工作,选择了15个数值试验方案,研究了煤体冲击倾向,孔隙瓦斯压及围岩应力对突出的影响。
This paper introduces the features both rock burst and outburst, and their united mechanism and presents mathematical model including unstable criterion and control equation, and numerical method consist of initial stress method of analysing pore pressure,unit loading method of judging unstable and FEM program frame.Selecting 15 numerical test plans, this paper studies effect of pore methane pressure and surround stress to outburst.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
1993年第4期328-337,共10页
Chinese Journal of Rock Mechanics and Engineering
