承受高静载应力的矿柱，较小的动力扰动可能会使其发生塑性破坏而导致深部开采时的“多米诺骨牌”效应。
Especially when the pillar is endured very high static stress, even a small dynamic disturbance may lead to its plastic destroying and result in a domino effect in the deep mining.
对深部矿柱在承受高静载应力时的动力扰动力学模型进行应力波传播力学响应分析，采用FLAC3D有限差分程序对深部开采圆形矿柱进行高应力下动力扰动数值计算。
By using an explicit finite difference program FLAC3D, a model of numerical calculation is established for a deep mining pillar with dynamic disturbance under high stress.
静载试验的内容是测定加固前后梁板结构的混凝土应力和挠度。
These experiments mainly aim at determining the deflection and stress of beam slab structure before and after reinforcement.
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