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| The summary of open pit blasting delay time selection |
| Received:December 16, 2014 Revised:December 29, 2014 |
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| DOI： |
| KeyWord:Open pit mining;Millisecond blasting;The mechanism of blasting ;Delay time to choose |
| Author | Institution |
| Louxiaoming |
福州大学紫金矿业学院 |
| Zhouwenhai |
福州大学爆炸技术研究所;福州大学紫金矿业学院 |
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| Abstract: |
| The article introduce the influence factors of reasonable delay time selection of open millisecond blasting. In this article , it based on the analysis about the optimal delay time selection at home and abroad, summarizes several mainly exist of major theoretical hypothesis and calculation of relevant theory and semi empirical mathematical model. There was presented on the different influencing factors of different hypotheses focus and the mechanism of the affecting factors, and analyzes several hypotheses test conditions and the advantages and disadvantages. For future improvement in China"s open pit blasting effect, and give guidance theory of the improvement of the economic benefit .In the end, according to the specific engineering examples ,this article points out the future direction of millisecond blasting for open selection of optimal delay time. |
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