爆堆形状是衡量爆破效果的重要指标之一。作者充分考虑了运动岩块间的碰撞作用,采用Weibull模型预测了露天台阶爆破的爆堆形状,并通过小模型实验和理论值进行了对比,得出用Weibull分布曲线来模拟台阶爆破的爆堆形状具有很强的实用性,可为台阶爆破的参数设计更加合理提供理论依据的结论。 Burst shape is one of the important indicators to measure the effect of blasting. The author fully considered the collision between moving rock masses, and predicted the blasting shape of open bench blasting by using the Weibull model. Compared with the theoretical value by the small model experiment, we obtained the Weibull distribution curve to simulate the blasting of bench blasting The shape has strong practicability and can provide the theoretical basis for the parameter design of step blasting to be more reasonable.