| 基于FLAC^3D的某碎石土边坡地震反应分析 |
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| 引用本文： | 鲁涛.基于FLAC^3D的某碎石土边坡地震反应分析[J].中国农村水利水电,2011(7). |
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| 作者姓名： | 鲁涛 |
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| 作者单位： | 三峡大学三峡库区地质灾害教育部重点实验室,湖北宜昌,443002 |
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| 基金项目： | 国家自然科学基金项目资助项目(50909052); 湖北省教育厅自然科学基金项目(D20081303) |
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| 摘 要： | 基于完全非线性的动力分析方法,利用FLAC3D软件对西南某碎石土边坡在地震下的稳定性进行分析。分析表明：地震作用下,边坡坡面的水平向永久位移最大,并由坡面向坡内逐渐减小;边坡的加速度时程与场地输入的PGA相比均有一定程度的放大;在边坡上随着高程的增加,水平方向向坡外的位移大小变化受边坡结构面的控制影响较大。研究结果有助于进一步探讨复杂边坡地震下的失稳机制。
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| 关 键 词： | 数值分析 碎石土边坡 地震 FLAC3D |
An Analysis of the Seismic Response of Debris Slope Based on FLAC~(3D) |
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| LU Tao.An Analysis of the Seismic Response of Debris Slope Based on FLAC~(3D)[J].China Rural Water and Hydropower,2011(7). |
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| Authors: | LU Tao |
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| Institution: | LU Tao(Key Laboratory for Geological Disasters inThree Gorges Reservoir,mMinistry of Education,Three Gorges University,Yichang 443002,Hubei Province,China) |
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| Abstract: | Based on fully non-linear dynamic analysis methods,a stability analysis of southwestern debris slope under earthquake is made with FLAC3D in this paper.The research findings show that,affected by earthquakes,the maximum permanent displacement focuses on the surface of the slope and the value decreases gradually from surface to inside of the slope.The acceleration series shows a certain degree of amplification can be compared with PGA.With the elevation increase,the change of horizontal displacements is infl... |
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| Keywords: | numerical analysis debris slope earthquake FLAC3D |
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