采用不连续分叉理论，分析了轴对称状态下岩石材料的破坏形式，并采用一组大理岩的实验结果进行了模拟计算。
The failure forms of rock materials in axisymmetric compression are studied based on the discontinuous bifurcation theory, and a set of experimental data of marbles are simulated.
对于非轴对称混凝土板，影响其冲切破坏形态的因素主要是荷载的作用位置。
Load position is main influence factor for non-axisymmetric slab's failure mode.
在轴对称的实验装置上，对上下施加侧压的中心开孔的含瓦斯煤饼，将孔内压力突然降至大气压，求得煤样在侧压和瓦斯压力联合作用下的临界破坏条件。
The pressure was then suddenly released in order to find out the critical condition of failure under the combined effect of confining pressure and pore pressure.
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