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对压柱弱化阶段的压机－压柱系统的能量变化关系作了分析，得到压柱失稳破裂终止点位移、压柱脆坏时压机释放的弹性能和受到的惯性力以及压机最大动位移等表达式。借用高强度混凝土压柱的荷载－位移曲线表达式对这些脆坏力学量作了计算和数据分析，深化了对矿柱和煤矿巷壁、采场煤壁（片帮型）冲击地压及其冲击强度原因的认识。
The relationship between the energy change of the press and column system during the weakening period of the column was analyzed. The displacement of the end of the column at instability and fracture of the column was obtained. The elastic energy and the inertial force released by the compressor when the column was crushed and the maximum Dynamic displacement and other expressions. Based on the load-displacement curve expression of high-strength concrete column, the calculation and analysis of these crushing mechanical quantities are carried out, and the impact pressure on the pillar and the coal wall, coal wall Impact strength of the understanding.