| 深孔爆破弱化坚硬顶板影响因素分析及应用 |
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| 引用本文： | 张学亮,徐刚,张会军,孙晓冬.深孔爆破弱化坚硬顶板影响因素分析及应用[J].中国矿业,2010,19(4). |
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| 作者姓名： | 张学亮 徐刚 张会军 孙晓冬 |
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| 作者单位： | 1. 煤炭科学研究总院,开采设计研究分院,北京,100013
2. 煤炭科学研究总院,开采设计研究分院,北京,100013;天地科技股份有限公司,开采设计事业部,北京,100013 |
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| 摘 要： | 文章介绍了深孔爆破机理及其弱化坚硬顶板的主要影响因素,着重分析了钻孔长度、钻孔间距,钻孔直径,封孔长度,装药结构等对深孔爆破的影响。结合实例说明深孔爆破弱化坚硬顶板是可行的。
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| 关 键 词： | 深孔爆破 爆破机理 坚硬顶板 |
Application and parameter analysis of softening hard roof with deep-hole blasting |
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| ZHANG Xue-liang,XU Gang,ZHANG Hui-jun,SUN Xiao-dong.Application and parameter analysis of softening hard roof with deep-hole blasting[J].China Mining Magazine,2010,19(4). |
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| Authors: | ZHANG Xue-liang XU Gang ZHANG Hui-jun SUN Xiao-dong |
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| Affiliation: | ZHANG Xue-liang1,XU Gang1,2,ZHANG Hui-jun1,SUN Xiao-dong1(1.Coal Mining & Designing Branch,China Coal Research Institute,Beijing 100013,China,2.Mining & Designing Department,Ti,i Science & Technology Co.Ltd,China) |
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| Abstract: | This paper introduced the theory and main parameters of softening hard roof with deep-hole blasting.This paper emphatically analyzed the effect to deep-hole blasting of drilling length,hole pitch,hole diameter,plug length and loading structure.The practical application showed that softening hard roof with deep-hole blasting were feasible. |
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| Keywords: | deep-hole blasting theory of blasting hard roof |
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