IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2015  > Vol12 No.3
Application of Hilbert-Huang Transform to the Analysis of the Landslides Triggered by the Wenchuan Earthquake
YANG Chang-wei; ZHANG Jian-jing; BI Jun-wei
Corresponding AuthorZHANG Jian-jing
2015-05
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume12Issue:3Pages:711-720
Subtype期刊论文
AbstractA steep rock hill with two side slopes located at DK30+256 of National Road 213 was used as a prototype for analysis. The full process from initial deformation to sliding of the slope during ground shaking was simulated by using a new Continuum-based Discrete Element Method. During the earthquake, when shaking amplitudes were lower, the stress concentration points firstly appeared at the top of the slip mass, and then some tension failure points appeared, followed by shear failure points. At the same time, both the instantaneous frequencies of accelerations in the bedrock and that in the slip mass basically stayed in two different ranges. The energy transmittance coefficients of the sliding surface also stayed in a high range. As the ground shaking lasted, the number of failure points gradually increased until landslide occurrence. The instantaneous frequencies of accelerations in the slip mass and the energy transmittance coefficients of sliding surface gradually decreased, and both finally converged to a lower range. And then, the reasons triggering landslides are analysis in the joint time-frequency domain using Hilbert-Huang Transform, as follows: the differences of distribution and dissipation of the earthquake energy and the inconsistency of movements between the slip mass and the bedrock were the two major influence factors.
KeywordDiscrete Element Method Hilbert-huang Transform Wenchuan Earthquake Landslide
DOI10.1007/s11629-014-3015-3
Indexed BySCI
Language英语
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9105
CollectionJournal of Mountain Science_Journal of Mountain Science-2015_Vol12 No.3
Corresponding AuthorZHANG Jian-jing
Recommended Citation
GB/T 7714
YANG Chang-wei,ZHANG Jian-jing,BI Jun-wei. Application of Hilbert-Huang Transform to the Analysis of the Landslides Triggered by the Wenchuan Earthquake[J]. Journal of Mountain Science,2015,12(3):711-720.
APA YANG Chang-wei,ZHANG Jian-jing,&BI Jun-wei.(2015).Application of Hilbert-Huang Transform to the Analysis of the Landslides Triggered by the Wenchuan Earthquake.Journal of Mountain Science,12(3),711-720.
MLA YANG Chang-wei,et al."Application of Hilbert-Huang Transform to the Analysis of the Landslides Triggered by the Wenchuan Earthquake".Journal of Mountain Science 12.3(2015):711-720.
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