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Erschienen in:

01.09.2024 | Original Paper

Dynamic response characteristics and damage failure process of bedding rock slope in shaking table test

verfasst von: Shuaisheng Miao, Lijun Su, Chonglei Zhang, Zhenyu Liu, Bin Wang, Zhibo Dong

Erschienen in: Bulletin of Engineering Geology and the Environment | Ausgabe 9/2024

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Abstract

This study aims to investigate the dynamic response and failure mechanism of bedding rock slopes in earthquake-prone areas with high intensity. Taking the Xinmo landslide as a case study, a shaking table model test was conducted. To overcome the limitations of previous single response feature parameters such as PGA, which cannot fully explain the dynamic characteristics of slopes under seismic excitation, this study approached the analysis from the perspective of energy. The influence of seismic wave types, frequencies, and amplitudes on the dynamic response was researched. The nonlinear dynamic response mechanism was explored. The influence of damage on dynamic response was discussed. A damage identification method was proposed, clarifying the progressive damage deformation process of the slope. Test results show that it is feasible to reveal the dynamic response laws and failure mechanism of the slope from the perspective of energy. Damage affects the dynamic response of the slope by reducing the natural frequency of the model slope, changing the energy transmission coefficient of the seismic wave, and increasing the dissipation energy of the seismic wave. The change pattern of the energy transmission coefficient can effectively identify the damage of the slope. The bedding rock slope fails in a tension-shear-sliding mode under seismic excitation. The difference in dynamic response caused by seismic energy difference is the main reason for damage deformation of the bedding rock slope, and the connection of shear-tensile cracks along the bedding structure plane is the direct cause of slope instability and sliding.

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Literatur
Zurück zum Zitat He JX, Qi SW, Zhan ZF, Guo SF, Li CL, Zheng BW, Huang XL, Zou Y, Yang GX , Liang N (2021) Seismic response characteristics and deformation evolution of the bedding rock slope using a large-scale shaking table. Landslides 18(8):2835–2853. https://doi.org/10.1007/s10346-021-01682-w  He JX, Qi SW, Zhan ZF, Guo SF, Li CL, Zheng BW, Huang XL, Zou Y, Yang GX , Liang N (2021) Seismic response characteristics and deformation evolution of the bedding rock slope using a large-scale shaking table. Landslides 18(8):2835–2853. https://​doi.​org/​10.​1007/​s10346-021-01682-w
Zurück zum Zitat Xu XN, Wang LS (2005) On the mechanism of slope deformation-failures and their distribution characteristics in a high earthquake-intensity area. J Eng Geol 13(1):68–75 (In Chinese) Xu XN, Wang LS (2005) On the mechanism of slope deformation-failures and their distribution characteristics in a high earthquake-intensity area. J Eng Geol 13(1):68–75 (In Chinese)
Metadaten
Titel
Dynamic response characteristics and damage failure process of bedding rock slope in shaking table test
verfasst von
Shuaisheng Miao
Lijun Su
Chonglei Zhang
Zhenyu Liu
Bin Wang
Zhibo Dong
Publikationsdatum
01.09.2024
Verlag
Springer Berlin Heidelberg
Erschienen in
Bulletin of Engineering Geology and the Environment / Ausgabe 9/2024
Print ISSN: 1435-9529
Elektronische ISSN: 1435-9537
DOI
https://doi.org/10.1007/s10064-024-03843-2