高岘二号桥边坡径向不耦合装药爆破数值模拟研究

Numerical Simulation Research on Radial Uncoupled Charge Blasting in the Gaoxian No.2 Bridge Slope

为了研究边坡控制爆破中径向不耦合装药对爆破效果的影响,采用ANSYS/LS-DYNA数值模拟计算和现场试验相结合的研究方法,对贵阳市北京东路高岘二号桥的边坡采用不耦合装药爆破,对炮孔径向不同的不耦合系数设置情况进行数值模拟与现场试验对比分析,得出其合理的不耦合装药系数为1.125,从而改善了爆破效果,达到了保证边坡稳定与平整的目的。

In order to study the radial uncoupled charging on blasting effect in slope controlled blasting,ANSYS/LS-DYNA simulated calculation combining with field tests was proposed.The new method was applied to simulate the different uncoupled coefficients of blasting diameters for uncoupled charge blasting in the Gaoxian No.2bridge slope of Guiyang.The reasonable coefficient of uncoupled charge was calculated as 1.125,which improved the blasting effect,and ensured the stability and smoothness of the slope.