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采用岩石板裂梁的纵向受压的力学模型，考虑深部岩石的流变性，分析了板梁稳定性的时间分叉特性．板梁失稳与岩体的流变性质密切相关，在一定载荷下，经历一段时间后会发生延迟失稳，给出了时间分叉点的计算式．并对深部矿井延迟性岩爆发生机制进行了初步分析
The mechanical model of the longitudinal compression of the rock slab beam is adopted, and the rheological properties of the deep rock are taken into account. The time-bifurcation characteristics of the slab beam stability are analyzed. The instability of plate girder is closely related to the rheological properties of rock mass. Under a certain load, the delay instability will occur after a period of time, and the formula of time bifurcation point is given. The mechanism of delayed rock burst in deep mines was also analyzed