| 不同炮孔密集系数下矿岩爆破能量分布 |
| |
| 引用本文： | 李海洪,李启月,肖六杏,王卫华.不同炮孔密集系数下矿岩爆破能量分布[J].矿业研究与开发,2009(3):83-85. |
| |
| 作者姓名： | 李海洪 李启月 肖六杏 王卫华 |
| |
| 作者单位： | 湖南有色金属股份有限公司黄沙坪矿业分公司;中南大学资源与安全工程学院; |
| |
| 摘 要： | 通过数值试验分析了密集系数m的变化所引起的矿岩爆破能量分布的变化。两孔之间至自由面的矿岩爆破能量分布为振荡形,m值不同,其振荡形状不同,总体趋势是m越大,其振荡形状越低,而且,m越大,两孔之间矿岩不能破碎的岩埂也越大。之外,试验也揭示了两孔之间至自由面的矿岩爆破破碎是由反射波引起的。
|
| 关 键 词： | 炮孔密集系数 数值试验 爆破能量分布 |
Density Distribution of Explosion Energy in Rock Blasting under Different Concentration Coefficient of Hole |
| |
| Li haihong,Li Qiyue,Xiao Liuxing and Wang Weihua.Density Distribution of Explosion Energy in Rock Blasting under Different Concentration Coefficient of Hole[J].Mining Research and Development,2009(3):83-85. |
| |
| Authors: | Li haihong Li Qiyue Xiao Liuxing and Wang Weihua |
| |
| Affiliation: | Huangshaping Mining Branch of Hunan Nonferrous Metals Corp.Ltd;Changsha;Hunan 410011;China;2.School of Resource and Safety Engineering;Central South University;Hunan 410083;China |
| |
| Abstract: | The change of blasting energy distribution because of different concentration coefficient of hole m was analyzed by numerical experiment.The experiment showed that the energy density distribution in the rock between two blasting holes and free face is concussive,the concussive pattern changes with the m value and the general trend is that the larger the m value is,the lower the concussive amplitude is,and the larger the unbroken rock between two blasting holes is.Besides,experiments show that the rock fragm... |
| |
| Keywords: | Concentration coefficient of hole Numerical experiment Density distribution of blasting energy |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《矿业研究与开发》浏览原始摘要信息 |
|
点击此处可从《矿业研究与开发》下载全文 |
