| 露天矿边坡大孔径预裂爆破研究与实践 |
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| 引用本文： | 吴成双,孙吉坤,璩世杰.露天矿边坡大孔径预裂爆破研究与实践[J].工程爆破,2011,17(1):28-30. |
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| 作者姓名： | 吴成双 孙吉坤 璩世杰 |
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| 作者单位： | 吴成双,孙吉坤,WU Cheng-shuang,SUN Ji-kun(唐山恒盛爆破工程有限公司,河北唐山,064404);璩世杰,QU Shi-jie(北京科技大学,北京,100083) |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目 |
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| 摘 要： | 在总结国内类似矿山边坡预裂爆破成功经验的基础上,对预裂爆破炮孔直径、孔距、线装药密度3个参数之间的关系进行了统计分析,针对某铁矿提出了两种炮孔直径条件下混合岩和片麻岩的预裂爆破技术参数,并在该铁矿边坡控制爆破中进行了试验应用,半孔率达90%以上,对于维护边坡岩体稳定具有重要意义.
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| 关 键 词： | 边坡 预裂爆破 炮孔直径 线装药密度 孔距 |
RESEARCH AND PRACTICE ABOUT LARGE HOLE PRESPLITTING BLASTING OF OPEN MINING SLOPE |
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| WU Cheng-shuang,SUN Ji-kun,QU Shi-jie.RESEARCH AND PRACTICE ABOUT LARGE HOLE PRESPLITTING BLASTING OF OPEN MINING SLOPE[J].Engineering Blasting,2011,17(1):28-30. |
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| Authors: | WU Cheng-shuang SUN Ji-kun QU Shi-jie |
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| Abstract: | Based on generalizing presplitting blasting experiences of domestic mine slope,statistic analyses were conducted about the relations among borehole diameter,borehole space and linear charge density of presplitting blasting.Technical parameters of presplitting blasting of Migmatite and Gneiss under two different borehole diameters were put forward and applied in the controlled blasting of an iron mine slope.Half borehole ration is up to above 90%,which is important significant for slope stability. |
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| Keywords: | Slope Presplit blasting Borehole diameter Linear charging density Borehole space |
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