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基于深部非连续自应力等级块系岩体构造理论,研究冲击载荷在块系岩体中以摆型波形式传播时岩块间黏弹性性质对摆型波传播的影响。当岩块间具有五种不同黏弹性性质时,通过对块系岩体的始端和末端区域中间岩块加速度响应计算及各岩块加速度正负摆幅幅值分析可知:岩块间黏性变化时,对岩块加速度衰减周期没有影响,但黏性增大时各岩块正负摆幅下降幅度比黏性周期增大时大;岩块间弹性变化时岩块加速度衰减周期均发生变化,但弹性减小时正负摆幅值向平衡位置平移,弹性周期减小时块系岩体的前半部分岩块正负摆幅曲线均出现波动且负摆波动较大,岩块间弹性梯级增大时,岩块加速度迅速衰减,同时各岩块加速度的正负摆幅曲线在初始端区域出现波动。
Based on the theory of deep discontinuous self-stressing block rock mass structure, the influence of viscoelastic properties between rock masses on the pendulum wave propagation when the impact load is transmitted in pendulum type rock mass is studied. When there are five different viscoelastic properties among the rock masses, the acceleration response of the rock mass at the beginning and the end of the block and the amplitudes of the positive and negative amplitudes of each rock mass are analyzed: the change of viscosity between the rock masses , It has no effect on the rockets acceleration attenuation period, but the decrease of the positive and negative amplitude of each rock mass is larger than that of the viscous period when the viscosity increases. The rockets acceleration attenuation period changes when the rock elasticity changes, However, when the elasticity decreases, the positive and negative amplitudes shift to the equilibrium position. When the elastic period decreases, the positive and negative amplitude curves of rock mass in the first half of the block rock fluctuate and the negative oscillation fluctuates greatly. , The rock acceleration rapidly decays, meanwhile the positive and negative swing curves of each rock mass fluctuate in the initial end region.