Dynamic Failure Mode and Dynamic Response of High Slope Using Shaking Table Test

A shaking table test was performed to study the dynamic response and failure modes of high slope. Test results show that PGA amplification coefficients increased with increasing elevation and the PGA amplification coefficient of the concave slope was slightly larger than that of the convex slope. Th...

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Bibliographic Details
Published inShock and vibration Vol. 2019; no. 2019; pp. 1 - 19
Main Authors Zhan, Haochen, Xu, Guanjun, Ren, Chenning, Zhou, Zhijun, Liu, Tong
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 01.01.2019
Hindawi
Hindawi Limited
Wiley
Subjects
Amplification
Coefficients
Collapse
Dimensional analysis
Dynamic response
Earthquake loads
Earthquakes
Elevation
Failure modes
Landslides & mudslides
Linear algebra
Lithology
Mathematical problems
Numerical analysis
Resonant frequencies
Seismic engineering
Seismic response
Shake table tests
Sliding
Soil layers
Studies
China
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Summary:A shaking table test was performed to study the dynamic response and failure modes of high slope. Test results show that PGA amplification coefficients increased with increasing elevation and the PGA amplification coefficient of the concave slope was slightly larger than that of the convex slope. The slope type affected the dynamic response of the slope. The elevation amplification effect of the concave slope under seismic load was more significant than that of the convex slope; thus, the concave slope was more unstable than the convex slope. Additionally, the PGA amplification coefficient measured on the slope surface was always larger than that inside the slope, and the data show an increasing trend with the broken line. The dynamic amplification effect of the high slope was closely related to the natural frequency of the slope. Within a certain range, the higher the frequency, the more significant the amplification effect. The dynamic failure process of concave and convex slopes was studied through tests. Findings indicate that the dynamic failure modes of the concave slope are characterized by shoulder collapse, formation of the sliding surface, and integral sliding above the slope line. Dynamic failure modes of the convex slope are mainly slips in the soil layer and collapse of the slope near the slope line.
ISSN:1070-9622
1875-9203
DOI:10.1155/2019/4802740