open pit middl-length hole blasting 露天中深孔爆破
mid-length hole blasting 中深孔控制爆破
medium-length hole blasting 中深孔爆破
medium length hole blasting 中深孔爆破
medium-length-hole blasting 中深孔爆破
Three dimensional finite element computing model is established and the effect of stemming length to deep hole bench blasting is studied by three dimensional finite element method.
采用三维有限元数值分析法，通过建立三维有限元计算模型，分析堵塞长度对堵塞区有效应力场的影响。
Simulation on effect of stemming length to deep hole bench blasting;
大块率是评价露天矿台阶深孔爆破质量的重要指标之一。
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