【摘要】 为了描述地下爆炸波的传播,建立了一种考虑塑性硬化、剪胀和损伤软化效应的岩石本构模型,并应用于地下强爆炸自由场的数值计算,获得的速度和位移波形以及峰值速度衰减曲线等与国外地下试验测量数据和同类计算相比十分接近,从而验证了本构模型的有效性。更多还原

【Abstract】 A new constitutive model of rocks considering the effects of plastic hardening, distortional dilation and damage softening is described. The ground motions caused by the underground explosions were studied numerically with the new model. The numerical results show that both the waveforms and the peak velocities are in good agreement with the experimental and numerical data published by other research groups. 更多还原