| 露天微差爆破延期时间选取 |
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| 引用本文： | 楼晓明,周文海.露天微差爆破延期时间选取[J].有色金属(矿山部分),2015,67(4):82-88. |
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| 作者姓名： | 楼晓明 周文海 |
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| 作者单位： | 1. 福州大学紫金矿业学院,福州350116;福州大学爆炸技术研究所,福州350116
2. 福州大学紫金矿业学院,福州,350116 |
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| 基金项目： | 福建省自然科学基金资助项目，青海威斯特露天矿临近高陡边坡控制爆破技术研究项目 |
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| 摘 要： | 阐述了露天微差爆破合理延期时间选取的影响因素,在分析国内外关于最佳延期时间选取的研究基础上,总结主要存在的几大理论假说以及相关的理论计算和半经验数学模型,探析不同假说侧重的不同影响因素以及各影响因素作用机理,并对几种假说试用条件和优缺点进行分析。为今后改善我国露天微差爆破效果和提高经济效益提供理论指导,同时根据具体工程实例和试验指出微差延期爆破较普通逐排爆破的优越性。
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| 关 键 词： | 露天矿开采 微差爆破 爆破机理 延期时间选取 |
| 收稿时间： | 2014/12/16 0:00:00 |
| 修稿时间： | 2014/12/29 0:00:00 |
The summary of open pit blasting delay time selection |
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| Authors: | Louxiaoming and Zhouwenhai |
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| Affiliation: | (1. College of Zijin Mining, Fuzhou University, Fuzhou 350108, China;
2. Research Institute of Explosive Technology, Fuzhou University, Fuzhou 350108, China) and (1. College of Zijin Mining, Fuzhou University, Fuzhou 350108, China;
2. Research Institute of Explosive Technology, Fuzhou University, Fuzhou 350109, China) |
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| Abstract: | This paper mainly expounds the influential factors to the selection of delayed time in millisecond blasting of open-pit mining. Based on the former study in the optimal delayed time, this paper summarizes several theoretical hypothesis and semi empirical mathematical models. Also, emphasis points and mechanism in different influential factors have been discussed. After systematic comparison, different applicable conditions, as well as advantages and disadvantages in different hypothesis are pointed out. Consequently, this paper offers theoretical guidance to the improvement of millisecond blasting in open-pit mining and economic revenue. In the meantime, on the basis of experimental data, millisecond blasting shows a better effect than traditional blasting. |
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| Keywords: | Open pit mining Millisecond blasting The mechanism of blasting Delay time to choose |
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