| 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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| Source Publication | ENVIRONMENTAL EARTH SCIENCES
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| 2012-02-01 | |
| Volume | 65Issue:4Pages:1029-1036 |
| ISSN | 1866-6280 |
| Abstract | 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. |
| Keyword | Simple Shear Saturated Soils Shear Bands Instability Plastic Porous Solids Granular-materials Saturated Soil Undrained Conditions Plane-strain Instability Localization Bifurcation Stability Band |
| Subject Area | 岩体力学和土力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000299840100009 |
| Funding Organization | 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). |
| Department | LMFS海洋土力学(LHO) |
| Classification | 二类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46628 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Lu, XB; Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China. |
| Recommended Citation 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. |
| 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. |
| 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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