| 预裂缝宽度对减振效果影响规律的数值分析 |
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| 引用本文： | 张喆,王幸荣. 预裂缝宽度对减振效果影响规律的数值分析[J]. 爆破, 2006, 23(3): 22-24,43 |
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| 作者姓名： | 张喆 王幸荣 |
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| 作者单位： | 金堆城钼业集团有限公司露天矿,陕西,华阴,714102;武汉理工大学资源与环境工程学院,湖北,武汉,430070 |
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| 摘 要： | 通过对地震波通过不同宽度预裂缝传播规律的数值模拟分析,和对预裂缝的减振效果进行了量化分析,了解预裂缝宽度对减振效果的影响规律,掌握了在一定范围内(即在r≤r0,r0为定值),减振效果随着预裂缝缝宽的增加而增加,当缝宽r≥r0时,缝宽对预裂缝减振效果的影响减弱.
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| 关 键 词： | 预裂爆破 预裂缝 爆破地震波 隔振减振 数值模拟 |
| 文章编号： | 1001-487X（2006）03-0022-03 |
| 收稿时间： | 2006-06-25 |
| 修稿时间： | 2006-06-25 |
Numerical Simulation Analysis of the Effect of Pre-splitting Crack Width on Damping Vibration |
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| ZHANG Zhe,WANG Xing-rong. Numerical Simulation Analysis of the Effect of Pre-splitting Crack Width on Damping Vibration[J]. Blasting, 2006, 23(3): 22-24,43 |
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| Authors: | ZHANG Zhe WANG Xing-rong |
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| Affiliation: | 1. Open Pit Mine,Jinduicheng Molybdenum Mining Corporation, Huayin 714102, China; 2. School of Resource and Environment Engineering, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | Transmitting principle of blasting vibration wave through pre-splitting blasting crack is analyzed by numerical simulation. The effect of pre-splitting blasting crack width on vibration attenuation is quantitatively analyzed. The results show that the effect of vibration isolation and damping increases with pre-splitting crack width in a certain value. When the crack width of pre-splitting blasting exceeds the value, its effect on damping vibration gets smaller and smaller. |
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| Keywords: | pre-splitting blasting pre-splitting crack seismic wave vibration isolation and damping numerical simulation |
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