摘要
提出应用煤层塑性软化理论和材料失稳的动力判别准则 ,对煤柱冲击地压进行的解析分析方法。计算顶板变形和煤柱应力分布规律 ,探讨有关参数对煤柱产生冲击地压的影响、临界载荷随煤的强度σc、E/λ的变化规律 。
The strain soften of coal is considered and the dynamic criterion of construction instabilirty is used to analyze pillar rockburst in this paper.The roof deformations and pillar stress distributions are calculatesd, probes the influence of some parameters on pillar rockburst and the change of critical load with σ c and E/λ are probed.The limit point for pillar rockburst happening is acquired.
出处
《地质灾害与环境保护》
2001年第2期62-65,共4页
Journal of Geological Hazards and Environment Preservation
