IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.12
Dynamic failure mode and energy-based identification method for a counter-bedding rock slope with weak intercalated layers
FAN Gang; ZHANG Jian-jing; FU Xiao; ZHOU Li-rong
Corresponding AuthorZHANG Jian-jing
2016-12
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume13Issue:12Pages:2111-2123
Subtype期刊论文
AbstractThe dynamic failure mode and energy-based identification method for a counter-bedding rock slope with weak intercalated layers are discussed in this paper using large scale shaking table test and the Hilbert-Huang Transform (HHT) marginal spectrum. The results show that variations in the peak values of marginal spectra can clearly indicate the process of dynamic damage development inside the model slope. The identification results of marginal spectra closely coincide with the monitoring results of slope face displacement in the test. When subjected to the earthquake excitation with 0.1 g and 0.2 g amplitudes, no seismic damage is observed in the model slope, while the peak values of marginal spectra increase linearly with increasing slope height. In the case of 0.3 g seismic excitation, dynamic damage occurs near the slope crest and some rock blocks fall off the slope crest. When the seismic excitation reaches 0.4 g, the dynamic damage inside the model slope extends to the part with relative height of 0.295-0.6, and minor horizontal cracks occur in the middle part of the model slope. When the seismic excitation reaches 0.6 g, the damage further extends to the slope toe, and the damage inside the model slope extends to the part with relative height below 0.295, and the upper part (near the relative height of 0.8) slides outwards. Longitudinal fissures appear in the slope face, which connect with horizontal cracks, the weak intercalated layers at middle slope height are extruded out and the slope crest breaks up. The marginal spectrum identification results demonstrate that the dynamic damage near the slope face is minor as compared with that inside the model slope. The dynamic failure mode of counter-bedding rock slope with weak intercalated layers is extrusion and sliding at the middle rock strata. The research results of this paper are meaningful for the further understanding of the dynamic failure mode of counter-bedding rock slope with weak intercalated layers.
KeywordMarginal Spectrum Dynamic Damage Counter-bedding Slope Failure Mode Shaking Table Test
DOI10.1007/s11629-015-3662-z
Indexed BySCI
Language英语
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17824
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.12
Recommended Citation
GB/T 7714
FAN Gang,ZHANG Jian-jing,FU Xiao,et al. Dynamic failure mode and energy-based identification method for a counter-bedding rock slope with weak intercalated layers[J]. Journal of Mountain Science,2016,13(12):2111-2123.
APA FAN Gang,ZHANG Jian-jing,FU Xiao,&ZHOU Li-rong.(2016).Dynamic failure mode and energy-based identification method for a counter-bedding rock slope with weak intercalated layers.Journal of Mountain Science,13(12),2111-2123.
MLA FAN Gang,et al."Dynamic failure mode and energy-based identification method for a counter-bedding rock slope with weak intercalated layers".Journal of Mountain Science 13.12(2016):2111-2123.
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