| 岩石爆破过程S波的产生机制分析 |
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| 引用本文： | 金旭浩,卢文波,田勇,严鹏,陈明.岩石爆破过程S波的产生机制分析[J].岩土力学,2011,32(Z2):228-232. |
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| 作者姓名： | 金旭浩 卢文波 田勇 严鹏 陈明 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点试验室;武汉大学水工岩石力学教育部重点试验室;水利部综合事业局; |
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| 基金项目： | 国家973计划项目(No.2010CB732003); 国家自然科学基金面上项目(No.51009013,No.50909077) |
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| 摘 要： | 全面总结、分析了岩石爆破过程S波的产生机制,表明短柱状药包、炮孔周围岩体的开裂与破碎以及装药偏离球形或柱形空腔中心,均可诱发S波,并且诱发S波的幅值可超过P波;P波传播过程与岩体界面的相互作用,可产生次生的S波(透、反射SV波)。在此基础上,就爆破振动场模拟方法与计算模型选择中如何体现S波的产生机制方面提出了建议。
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| 关 键 词： | 爆破 振动 应力波 S波 |
| 收稿时间： | 2011-05-12 |
Analysis of mechanisms of S wave generated in rock blasting process |
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| JIN Xu-hao ,,LU Wen-bo,TIAN Yong,YAN Peng,CHEN Ming.Analysis of mechanisms of S wave generated in rock blasting process[J].Rock and Soil Mechanics,2011,32(Z2):228-232. |
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| Authors: | JIN Xu-hao LU Wen-bo TIAN Yong YAN Peng CHEN Ming |
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| Institution: | 1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China; 2. Key Laboratory of Rock Mechanics in Hydraulic Structural Engineering of Ministry of Education, Wuhan University, Wuhan 430072, China; 3. Bureau of Comprehensive Development, Ministry of Water Resources, Beijing 100053 |
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| Abstract: | Mechanisms of S wave induced during rock fragmentation by blasting are concluded and analyzed as follows.The short column charge,cracking and breakage of rock mass around blast hole and deviation of charge away from the centre of spherical or cylindrical cavities can induce S wave.The interaction of P wave with rock interfaces during propagation can produce secondary S waves(transmitted and reflected S waves).On the basis of this,some proposals on how to choose the numerical method and calculation model dur... |
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| Keywords: | blasting vibration stress wave S wave |
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