| 有软夹层的基岩上覆土层在断层错动时的破裂特征研究 |
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| 引用本文： | 赵雷,李小军,霍达.有软夹层的基岩上覆土层在断层错动时的破裂特征研究[J].地震学报,2006,28(5):523-528. |
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| 作者姓名： | 赵雷 李小军 霍达 |
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| 作者单位： | 中国北京,100022,北京工业大学建工学院;中国哈尔滨,150080,中国地震局工程力学研究所;中国北京,100081,中国地震局地球物理研究所 |
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| 摘 要： | 采用平面应变有限元法，研究了地震断层错动时有软夹层的基岩上覆土层的破裂特征. 结果表明，软夹层使上覆土层破裂分为两个阶段. 软夹层埋置深浅的不同使上覆土层的破裂过程和破裂范围表现出一定的差异. 埋置较深的软夹层使地表产生较大的破坏. 软夹层的厚薄对上覆土层的破裂进程和破裂范围也有影响.
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| 关 键 词： | 地震断层 软夹层 上覆土层 有限元方法 |
| 文章编号： | 0253-3782(2006)05-0523-06 |
| 修稿时间： | 2006年3月14日 |
STUDY ON THE RUPTURE CHARACTERISTICS OF THE OVERLAYING SOIL WITH SOFT INTERLAYER DUE TO FAULT BEDROCK DISLOCATION |
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| Zhao Lei,Li Xiaojun,Huo Da.STUDY ON THE RUPTURE CHARACTERISTICS OF THE OVERLAYING SOIL WITH SOFT INTERLAYER DUE TO FAULT BEDROCK DISLOCATION[J].Acta Seismologica Sinica,2006,28(5):523-528. |
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| Authors: | Zhao Lei Li Xiaojun Huo Da |
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| Abstract: | In this paper, the rupture characteristics of the overlaying soil with soft interlayer were studied by plane-strain finite element method. From the results, it can be shown that the existence of soft layer separates rupture process of the overlaying soil into two phases. The depth of a buried soft interlayer will influence the rupture process and the rupture range of the overlaying soil. The deeply buried soft interlayer would bring about a wider range of surface failure. In addition, the thickness of the soft layer also has effect on the rupture process and rupture range of the overlaying soil. |
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| Keywords: | fault soft interlayer overlaying soil finite element method |
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