Dynamic failure mode and energy-based identification method for a counter-bedding rock slope with weak intercalated layers
文献类型：期刊论文
| 作者 | FAN Gang; ZHANG Jian-jing; FU Xiao; ZHOU Li-rong |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2016-12 |
| 卷号 | 13期号:12页码:2111-2123 |
| ISSN号 | 1672-6316 |
| 关键词 | Marginal spectrum Dynamic damage Counter-bedding slope Failure mode Shaking table test |
| 通讯作者 | ZHANG Jian-jing |
| 英文摘要 | The 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/17824]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 No.12 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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