露天台阶水介质间隔装药结构优选及对比试验研究
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费鸿禄,纪海楠,山杰
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Optimization and Comparative Experimental Study of Charge Structure of Water Medium Interval on Open-air Step
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Honglu FEI,Hainan JI,Jie SHAN
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表1 炸药单耗优化分析
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Table 1 Optimization analysis of explosive unit consumption
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组别 | 装药结构 | 炸药单耗/(kg·m-3) | 爆破效果 |
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70 cm以上块度占比/% | 爆堆抛掷距离/m |
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对照组 | 炸药(5.5 m)—空气(1.5 m)—炸药(2.5 m)—填塞(3.5 m) | 0.37 | 13.2 | 25.0 | 试验组1 | 炸药(5.4 m)—水(1.6 m)—炸药(2.5 m)—填塞(3.5 m) | 0.36 | 4.2 | 28.0 | 试验组2 | 炸药(5.2 m)—水(1.8 m)—炸药(2.5 m)—填塞(3.5 m) | 0.35 | 7.5 | 26.5 | 试验组3 | 炸药(5.0 m)—水(2.0 m)—炸药(2.5 m)—填塞(3.5 m) | 0.34 | 9.5 | 25.8 | 试验组4 | 炸药(4.8 m)—水(2.2 m)—炸药(2.5 m)—填塞(3.5 m) | 0.33 | 15.5 | 23.3 |
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