| 常规炸药与不同岩体匹配的可能途径 |
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| 引用本文： | 李夕兵,古德生.常规炸药与不同岩体匹配的可能途径[J].矿冶工程,1994,14(1):17-20. |
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| 作者姓名： | 李夕兵 古德生 |
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| 作者单位： | 中南工业大学 |
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| 摘 要： | 为探讨常规炸药与确定岩体间实现合理匹配的可能性，本文采用等效波阻法，分析了炸药与孔壁之间嵌入不同厚度和阻抗的中间层时的能量传递效果。分析结果表明：当炸药与岩体阻抗很不匹配时，使用合适的阻抗和厚度的中间层，不但可有效地提高能量利用率，同时无需特别扩大一般工程爆破时的炸药种类，是一种合理破碎不同强度矿岩的可行方案
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| 关 键 词： | 爆破工程，波阻抗，匹配，岩石动力学 |
THE REASONAL MATCH BETWEEN CONVENTIONAL EXPLOSIVESAND ROCK MASSES WITH DIFFERENT ACOUSTIC IMPEDANCES |
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| Li Xibing,Gu Desheng,Lai Haihui.THE REASONAL MATCH BETWEEN CONVENTIONAL EXPLOSIVESAND ROCK MASSES WITH DIFFERENT ACOUSTIC IMPEDANCES[J].Mining and Metallurgical Engineering,1994,14(1):17-20. |
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| Authors: | Li Xibing Gu Desheng Lai Haihui |
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| Affiliation: | Central South University of Technology |
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| Abstract: | In order to investigate the possible ways to the reasonal match between con-ventional explosives and rock masses with different acoustic impedances,the energy transmis-sion of detonation wave to rock is analysed on the condition that a medium is inserted be-tween explosives and rock walls. The results showed that to raise energy utilization it is nec-essary to insert a special medium of proper impedance and thickness if rock does not matchexplosives in their acoustic impedances. The theoretical analysis and tests showed that it isfeasible to fragment the rock with different impedances by conventional explosives. |
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| Keywords: | Blasting engineering Acoustic impedance Impedance match Rock dynamics |
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