| 基于岩体声波损伤特性的露天台阶爆破试验 |
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| 引用本文： | 胡刚.基于岩体声波损伤特性的露天台阶爆破试验[J].煤炭学报,2009,34(7):917-921. |
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| 作者姓名： | 胡刚 |
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| 作者单位： | 黑龙江科技学院 资源与环境工程学院，黑龙江 哈尔滨,150027 |
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| 基金项目： | 黑龙江省教育厅普通高校骨干教师创新能力资助计划(1152G034) |
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| 摘 要： | 基于声波岩体损伤定义，采用StrataViewTM R24 Exploration Seismograph爆炸震动测试仪和克浪公司生产的KDH-SWA-3C-60A型MVSP三分量测井检波器，利用锤击叠加作震源对台阶爆破钻凿的炮孔进行了声波测试试验，研究了爆区附近岩体的损伤.结果表明：经历过冲击载荷扰动的岩体与未受扰动前相比，其纵波波速均降低，接收波的主频向低频移动，岩体的纵波速度和横波速度之比也发生劣化；损伤区的范围可以用波速的变化来划分，在爆破设计施工中，应该考虑爆破损伤区的影响.
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| 关 键 词： | 声波 损伤特性 台阶爆破 波速 爆炸冲击 |
| 收稿时间： | 2008-08-12 |
Experiment of open-pit bench blast based on the sound wave-induced damage properties of rock masses |
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| HU Gang.Experiment of open-pit bench blast based on the sound wave-induced damage properties of rock masses[J].Journal of China Coal Society,2009,34(7):917-921. |
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| Authors: | HU Gang |
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| Affiliation: | Department of Resources and Environmental Engineering;Heilongjiang Institute of Science and Technology;Haerbin 150027;China |
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| Abstract: | Based on the definition of sound wave-induced damage to rock masses,studied the damages to the rock mass adjacent to the blast areas in sound wave detection experiments,using accumulated hammer strikes as the explosive source,and the Strata View TM R24 Exploration Seismograph and the KDH-SWA-3C-60A Class MVSP three-component seismometer as detection tools.The results show that when sound waves travel through rock masses which experience impact loads,the compression ware velocity decreases,the frequency of t... |
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| Keywords: | sound wave damage property bench blasting wave velocity blast-induced shock |
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