讨论了在压应力作用下的裂隙闭合效应。
Under a compressive stress state, the closure effect of joints is considered.
根据大量的实验资料，本文分析了砂岩样品的纵横波速度和有效压力的关系，对实验结果进行了回归分析，并用裂隙闭合理论进行了解释。
On the base of large experimental data set, the influence of effective pressure on rock velocities is analyzed with regression method and the theory of crack closure.
本文在室内模型试验与现场爆破漏斗试验基础上，着重论述了单个闭合状裂隙对单个球状药包爆破破碎效果的影响。
Based on the indoor model tests and field blasting crater tests, the paper discussed the influence of single closed fissure upon fragmentation effect of blasting with single spherical charge.
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