爆破是露天矿山生产中的重要环节之一.爆破时通过炸药能量释放,使炮孔周围的岩石破碎、塌落.同时由于爆破地震波的作用产生剪应力和拉应力,使岩石的节理、裂隙增大,并且又有新的裂隙出现,岩体强度降低,这样将会造成台阶边坡滑落的可能.爆破作用产生台阶的滑落在许多矿山都有发生,有时还因而使附近的建筑物或地下工程遭到破坏.在研究 Blasting is one of the most important steps in the open pit mining.During the blasting, the rock around the blasting hole is broken and collapsed due to the release of the energy of the explosive.While the shear stress and tensile stress are produced by the blasting seismic wave, the joints and cracks in the rock are increased Large and new fissures appear, and the strength of the rock mass decreases, which will result in the possibility of the slope of the step falling off. The step-down of the blasting occurs in many mines, sometimes causing nearby buildings or underground works Undermined