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Shaking Table Tests on Sliding Displacements of Loess Slope under Coupling Effect of Rainfall and Earthquake
Joint Authors
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-05
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Shaking table tests were performed to investigate whether the coupling effect of rainfall and earthquake induces the loess slope instability.
The loess slope model was made by using the similarity ratio based on a real slope.
Artificial rainfall was carried out, and then seismic waves were loaded step by step to adopt a large shaking table of 4∗6 m.
The displacement in x, y, and z directions and absolute displacement of loess slope (ux, uy, uz, and ua) were measured to use the XTDIC displacement test system in 50 s when the seismic waves at peak acceleration were loaded to 600 gal, 700 gal, 800 gal, 976 gal, and 1300 gal, respectively.
The results showed that the acceleration of one point was much larger than the other.
ua occurred when seismic waves were loaded to 700 gal, and uamax was obtained when seismic waves were loaded to 1300 gal finally.
The umax would reach in 20∼25 s, which was the period of amplitude peak.
The theoretical value was larger than the test value for the critical seismic acceleration coefficient.
Loess liquefaction appeared along the slope top under 976 gal loading condition.
The change of displacement in y direction is the main reason for the curve trajectory of the sliding block, and the displacement differences of adjacent measuring points are the main reason for the formation of the sliding block.
This study can provide a theoretical basis for loess slope design and risk management.
American Psychological Association (APA)
Yin, Xiaojun& Wang, Lanmin. 2019. Shaking Table Tests on Sliding Displacements of Loess Slope under Coupling Effect of Rainfall and Earthquake. Shock and Vibration،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1211348
Modern Language Association (MLA)
Yin, Xiaojun& Wang, Lanmin. Shaking Table Tests on Sliding Displacements of Loess Slope under Coupling Effect of Rainfall and Earthquake. Shock and Vibration No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1211348
American Medical Association (AMA)
Yin, Xiaojun& Wang, Lanmin. Shaking Table Tests on Sliding Displacements of Loess Slope under Coupling Effect of Rainfall and Earthquake. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1211348
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211348