| Evolution of shear zones using numerical analysis at the May 12th Wenchuan Earthquake Site, China |
| Lu XB(鲁晓兵) ; Cui P; Chen XQ; Hu KH; Zhu YY; Lu, XB; Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
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| 发表期刊 | ENVIRONMENTAL EARTH SCIENCES
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| 2012-02-01
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| 卷号 | 65期号:4页码:1029-1036 |
| ISSN | 1866-6280
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| 摘要 | Landslides and collapses occurred during the May 12th earthquake in Wenchuan County. Most of these landslides and collapses were caused by shear bands. Shear band triggers instability on mountain slopes, resulting in debris flow, landslides, or collapse. According to experimental results, there was only one shear band forming in the soil layer prior to the initiation of debris flow under shear load, although several fine shear bands appeared. The development of shear bands in saturated soils is numerically investigated in this paper using the in situ soil from the Weijia Gully, Beichuan County. The evolution of shear banding from several finite amplitude disturbances (FADs) in pore pressure has been studied. The numerical analysis revealed that the FADs evolved into a fully developed shear band. It is shown that the shear banding process consists of two stages: inhomogeneous shearing and true shear banding. |
| 关键词 | Simple Shear
Saturated Soils
Shear Bands
Instability
Plastic Porous Solids
Granular-materials
Saturated Soil
Undrained Conditions
Plane-strain
Instability
Localization
Bifurcation
Stability
Band
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| 学科领域 | 岩体力学和土力学
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000299840100009
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| 项目资助者 | This paper is supported by National Basic Research Program of China "Activity characteristics and formation rules of secondary mountain hazard of earthquake" (No. 2008CB425802) and Key Program of Chinese Academy of Sciences (No. KZCX2-YW-302-02).
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| 课题组名称 | LMFS海洋土力学(LHO)
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| 论文分区 | 二类
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/46628
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| 专题 | 流固耦合系统力学重点实验室
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| 通讯作者 | Lu, XB; Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China. |
推荐引用方式
GB/T 7714 |
Lu XB,Cui P,Chen XQ,et al. Evolution of shear zones using numerical analysis at the May 12th Wenchuan Earthquake Site, China[J]. ENVIRONMENTAL EARTH SCIENCES,2012,65,4,:1029-1036.
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| APA |
鲁晓兵.,Cui P.,Chen XQ.,Hu KH.,Zhu YY.,...&Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China..(2012).Evolution of shear zones using numerical analysis at the May 12th Wenchuan Earthquake Site, China.ENVIRONMENTAL EARTH SCIENCES,65(4),1029-1036.
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| MLA |
鲁晓兵,et al."Evolution of shear zones using numerical analysis at the May 12th Wenchuan Earthquake Site, China".ENVIRONMENTAL EARTH SCIENCES 65.4(2012):1029-1036.
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