| 5.12汶川大地震诱发大型崩滑灾害动力特征初探 |
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| 引用本文： | 许强,黄润秋.5.12汶川大地震诱发大型崩滑灾害动力特征初探[J].工程地质学报(英文版),2008,16(6):721-729. |
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| 作者姓名： | 许强 黄润秋 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室 成都 610059 |
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| 基金项目： | 国家重点基础研究发展计划课题"强震作用下斜坡失稳破坏机理及分布规律" |
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| 摘 要： | 5.12汶川大地震发生于地质环境条件异常脆弱的龙门山地区，加上地震震级高、释放能量大，持续时间长等特点，汶川地震不仅直接诱发了数以万计的崩滑地质灾害，且表现出非常独特的动力学特征。在对汶川地震灾区崩滑灾害进行大量调查的基础上，结合建构筑物和斜坡岩体在地震过程中的变形破坏特点，本文从地震动力学和斜坡变形破坏成因机理的角度，揭示了汶川地震诱发的大型崩滑灾害具有震裂溃屈、临空抛射和碎屑流化等独特的动力学特征，为强震诱发地质灾害成因机理研究提供了新的认识。
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| 关 键 词： | 汶川地震，震裂溃屈，临空抛射，碎屑流，流态化 |
KINETICS CHARATERISTICS OF LARGE LANDLIDES TRIGGERED BY MAY 12TH WENCHUAN EARTHQUAKE |
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| XU Qiang HUANG Runqiu.KINETICS CHARATERISTICS OF LARGE LANDLIDES TRIGGERED BY MAY 12TH WENCHUAN EARTHQUAKE[J].Journal of Engineering Geology,2008,16(6):721-729. |
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| Authors: | XU Qiang HUANG Runqiu |
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| Abstract: | Wenchuan Earthquake occurred in the Longmen Mountain region,which geologic environment is very weak,and the earthquake with high magnitude,large energy,long duration and other characteristics.Wenchuan Earthquake directly induced thousands of rock fall and collapses.Some unique kinetics characteristics of these collapses have been found during the earthquake.Based on lots of collapse site investigations around Wenchuan area and combined with the characteristics of construction and slope broken patterns,the paper represents the kinetic characteristics of cracking,horizontal throwing and debris flows triggered by earthquake.It may provide some new clues to attribute the research on the causes of strong earthquake. |
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| Keywords: | Wenchuan Earthquake Cracking by shaking Horizontal throwing Debris flows Fluidization |
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