关键词:窄槽;预裂;缓冲;梯段;布孔 [gap=475]Key words: narrow groove; presplitting; buffering; step; hole distributing
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horizontal presplitting blast 水平预裂爆破
rock presplitting 预裂爆破
Advance presplitting 超前预裂
presplitting blast 预裂爆破
presplitting technique 预裂爆破法
The test results show that the technology of vertical deep hole presplitting blast is a feasible method in Shi Rengou Iron Mine.
在石人沟铁矿的试验结果表明采用垂直深孔预裂爆破技术在该矿是一种可行方案。
The technique of deep-hole presplitting blasting in coal bed is widely used for gas predrainage recently; but its blasting theory is not clear up to now.
煤层深孔预裂爆破近年来在瓦斯抽放中运用日益增多，但目前对其爆破理论研究较少。
The selection of parameters in smooth and presplitting blasting plays an important role in blast effect. It is an important part in project design of smooth and presplitting blasting.
爆破参数的选择直接影响着爆破效果，是光面、预裂爆破工程设计的重要内容。
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