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Evolution of shear zones using numerical analysis at the May 12th Wenchuan Earthquake Site, China
Lu, X. B.1; Cui, P.2; Chen, X. Q.2; Hu, K. H.2; Zhu, Y. Y.2
Corresponding AuthorLu, X. B.
2012
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume65Issue:4Pages:1029-1036
SubtypeArticle
AbstractLandslides 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.
KeywordSimple Shear Saturated Soils Shear Bands Instability
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s12665-011-1358-4
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology ; Water Resources
Indexed BySCI
WOS KeywordPLASTIC POROUS SOLIDS ; GRANULAR-MATERIALS ; SATURATED SOIL ; UNDRAINED CONDITIONS ; PLANE-STRAIN ; INSTABILITY ; LOCALIZATION ; BIFURCATION ; STABILITY ; BAND
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000299840100009
Funding OrganizationNational Basic Research Program of China "Activity characteristics and formation rules of secondary mountain hazard of earthquake"(2008CB425802) ; Chinese Academy of Sciences(KZCX2-YW-302-02)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9921
Collection山地灾害与地表过程重点实验室
Affiliation1.Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Lu, X. B.,Cui, P.,Chen, X. Q.,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 Lu, X. B.,Cui, P.,Chen, X. Q.,Hu, K. H.,&Zhu, Y. Y..(2012).Evolution of shear zones using numerical analysis at the May 12th Wenchuan Earthquake Site, China.ENVIRONMENTAL EARTH SCIENCES,65(4),1029-1036.
MLA Lu, X. B.,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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