【摘要】 对等直径和变直径2种深孔形式爆破后岩体的位移进行了数值模拟,得出了采用变直径深孔爆破工艺可较好地解决露天矿高台阶开采的爆破根底问题等有意义的结论,为在高台阶开采的矿山推广变直径深孔爆破提供了一些定量指导依据。更多还原

【Abstract】 The rock displacement is numerically simulated after variable-diameter and equi-diameter deephole blasting. The significant conclusion is drawn that the variable-diameter deephole blasting can solve the root problem of open-pit high bench exploitation blasting. The experience provides a guide for spreading the variable-diameter deephole blasting in the high bench exploitation.更多还原