| 不同方式地下爆炸地震耦合效应的数值模拟 |
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| 引用本文： | 肖卫国,王肖钧,劳俊,朱号锋. 不同方式地下爆炸地震耦合效应的数值模拟[J]. 计算物理, 2011, 28(6): 797-802 |
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| 作者姓名： | 肖卫国 王肖钧 劳俊 朱号锋 |
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| 作者单位： | 1. 中国科学技术大学近代力学系, 安徽 合肥 230027;2. 西北核技术研究所, 陕西 西安 710024 |
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| 摘 要： | 通过一种Euler与Lagrange相结合的有限差分法,开展地下爆炸地震耦合效应的数值模拟.比较花岗岩介质中填实和空腔两种爆炸方式在地震耦合效应方面的差异,进一步分析初始空腔大小在填实以及空腔爆炸地震效应中的作用以及空腔爆炸解耦因子随频率的变化特性.计算结果表明,花岗岩介质中完全空腔解耦因子能达到50~60倍.
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| 关 键 词： | 地下爆炸 折合位移势 解耦因子 |
| 收稿时间： | 2011-01-12 |
| 修稿时间： | 2011-05-26 |
Numerical Simulation of Seismic Coupling Effects in Underground Explosion with Different Explosion Modes |
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| XIAO Weiguo,WANG Xiaojun,LAO Jun,ZHU Haofeng. Numerical Simulation of Seismic Coupling Effects in Underground Explosion with Different Explosion Modes[J]. Chinese Journal of Computational Physics, 2011, 28(6): 797-802 |
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| Authors: | XIAO Weiguo WANG Xiaojun LAO Jun ZHU Haofeng |
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| Affiliation: | 1. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China;2. Northwest Institute of Nuclear Technology, Xi'an 710024, China |
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| Abstract: | By using a numerical method developed in this paper,namely coupled Euler/Lagrange method,numerical simulations on seismic coupling effects induced by underground explosion with different explosion modes are carried out.Seismic coupling effects in tamped and cavity explosions in granite were studied.Dependence of decoupling factor on the initial cavity volume and the frequency were examined.It shows that the decoupling factor could reach 50 to 60 for completed cavity decoupling explosions in granite. |
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| Keywords: | underground explosion reduced displacement potential decoupling factor |
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