| 岩性因素对岩石爆破的影响 |
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| 引用本文： | 戴长冰,陈立群,宋守志.岩性因素对岩石爆破的影响[J].东北大学学报(自然科学版),2003,24(7):696-698. |
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| 作者姓名： | 戴长冰 陈立群 宋守志 |
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| 作者单位： | 1. 东北大学资源与土木工程学院,辽宁沈阳,110004
2. 辽宁有色勘察研究院,辽宁沈阳,110002 |
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| 基金项目： | 国家"十五"科技攻关项目(2001BA609A-10)· |
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| 摘 要： | 通过对岩石爆破机理的分析,认为岩石的最终破坏是由于爆炸产生的作用力超过其强度所致·进而分析了岩石的物理力学性质与岩石爆破的关系,重点阐述了岩石强度、孔隙度及密度对岩石爆破效果的影响,指出了在岩石爆破中起主要作用的是岩石的抗拉强度,阐明了岩石的空隙度越小、密度越大则越有利于岩石爆破,并探讨了水对岩石爆破效果的影响,指出水介质的存在有利于岩石的爆破·
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| 关 键 词： | 岩性因素 应力波 岩石爆破机理 空隙度 密度 |
| 文章编号： | 1005-3026(2003)07-0696-03 |
| 修稿时间： | 2003年1月17日 |
Effects of Rock Mechanical Characteristics on the Rock Blasting |
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| Dai,Chang-Bing ,Chen,Li-Qun ,Song,Shou-Zhi.Effects of Rock Mechanical Characteristics on the Rock Blasting[J].Journal of Northeastern University(Natural Science),2003,24(7):696-698. |
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| Authors: | Dai Chang-Bing Chen Li-Qun Song Shou-Zhi |
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| Institution: | (1) Sch. of Resourses and Civil Eng., Northeastern Univ., Shenyang 110004, China; (2) Liaoning Non-ferrous Res. Ins., Shenyang 110002, China |
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| Abstract: | Through analyzing mechanism of rock blasting,the rock blasting reason can be concluded that the action force of rock blasting generated is bigger than rock strength. The relationship of rock physical mechanica characteristics and rock blasting were examined. The influence of rock strength,density and porosity of on rock blasting were demonstrated. It is found that the tensile strength of rock plays a key role in rock blasting and that the smaller of rock porosity and the bigger of rock density are favorable to rock blasting. At the last,the influence of water on rock blasting was investigated and it is shown that water medium is favorable to rock blasting. |
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| Keywords: | rock character stress wave rock blasting mechanism void fraction density |
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