| 光面护壁爆破在破碎岩体巷道掘进中的应用 |
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| 引用本文： | 郝亚飞,张志呈,蒲传金,刘一伟,郭学彬. 光面护壁爆破在破碎岩体巷道掘进中的应用[J]. 矿业研究与开发, 2009, 0(2): 92-94 |
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| 作者姓名： | 郝亚飞 张志呈 蒲传金 刘一伟 郭学彬 |
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| 作者单位： | 西南科技大学环境与资源学院; |
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| 基金项目： | 四川省绵阳市科技局资助项目 |
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| 摘 要： | 简要分析了光面护壁爆破技术的基本原理。将该技术应用于某磷矿的巷道掘进中,其应用效果与传统光面护壁爆破相比,周边空痕率提高了近33%,炸药单耗降低了0.233 kg/m3,掘进速度也有所提高。实践表明,光面护壁爆破在降低围岩损伤破坏方面具有较好的效果。
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| 关 键 词： | 巷道掘进 光面护壁爆破 爆破参数 装药结构 爆破效果 |
Application of Smooth Blasting with Borehole Wall Protection in Tunneling in Fractured Rock |
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| Hao Yafei,Zhang Zhicheng,Pu Chuanjin,Liu Yiwei and Guo Xuebin. Application of Smooth Blasting with Borehole Wall Protection in Tunneling in Fractured Rock[J]. Mining Research and Development, 2009, 0(2): 92-94 |
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| Authors: | Hao Yafei Zhang Zhicheng Pu Chuanjin Liu Yiwei Guo Xuebin |
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| Affiliation: | Southwest University of Science and Technology;Mianyang 621010;China |
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| Abstract: | The basic principle of smooth blasting by protecting borehole wall with pipe is analyzed in brief.The smooth blasting technique with borehole wall protection was applied in tunneling in some phosphate mine.Comparing with traditional smooth blasting,this new smooth blasting technique can increase the length of peripheral hole remaining on rock surface by near 33%,reduce the unit volume consumption by about 0.233 kg/ m3,also can enhance tunneling rate.The practice showed that this new smooth blasting techniqu... |
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| Keywords: | Tunneling Smooth blasting with borehole wall protection Blasting parameters Charge structure Blasting effect |
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