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将直接顶视为可变形体, 根据支架围岩关系的整体力学模型, 从能量角度出发, 证明了支架工作阻力与顶板下沉量存在类双曲线关系, 并进一步探讨了直接顶高度、直接顶坚硬程度或损伤程度对此类双曲线关系的影响, 其结果对现场支护设计有重要的指导意义。
According to the overall mechanical model of the relation between the surrounding rock and the bracket, the hyperbolic relationship between the working resistance and the subsidence of the roof is proved from the energy point of view, and further discussion is made on the relationship between the direct roof height, The influence of the degree of hardness or degree of damage on the hyperbolic relationship has the important guiding significance for the design of on-site support.