【摘要】 为研究多孔爆破条件下的岩体破碎及路堑边坡岩体爆破振动,采用完全重启动数值方法和拉格朗日算法计算岩体爆破破碎,并获得了边坡特征点的振动,实验和数值模拟比较吻合。研究结果表明:采用拉格朗日算法和完全重启动数值模拟方法可描述毫秒延期爆破岩体破碎和质点振动现象,地震波的相互叠加会加剧边坡的爆破振动危害。更多还原

【Abstract】 A full restart method of numerical simulation and Lagrangian formula are used to simulate the fragment of rock and the vibration of slope to investigate the fragment of rock and the blasting vibration of large-stiff slope during multi-hole blasting. The simulated results are agreement with the experimental results. The results indicate that the full restart method of numerical simulation and Lagrangian formula can be used to describe the multi-hole blasting vibration of large-stiff slope. The superposition of seismic waves may intensify the blasting vibration of slope.更多还原