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:: Volume 13, Issue 5 (English article specials 2020) ::
2020, 13(5): 23-58 Back to browse issues page
An Analytical Ssolution for Estimating the Effect of Soil-Structure Interaction on 3D Vibration Natural Frequency of Reinforced Retaining Walls
Alireza Darvishpour1, Ali Ghanbari *2, Seyyed Ali Asghar Hosseini3, Masoud Nekooei1
1- Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
2- Department of Civil Engineering, Kharazmi University, Mofatteh Avenue, P.O. Box 15719-14911, Tehran, Iran , ghanbari@khu.ac.ir
3- Department of Mechanical Engineering, Kharazmi University, Mofatteh Avenue, P.O. Box 15719-14911, Tehran, Iran
Abstract:   (1289 Views)

One of the effective parameters in the dynamic behavior of reinforced soil walls is the fundamental vibration frequency. In this paper, analytical expressions for the first three natural frequencies of a geosynthetic reinforced soil wall are obtained in the 3D domain, using plate vibration theory and the energy method. The interaction between reinforced soil and the wall is also considered by modeling the soil and the reinforcement as axial springs. The in-depth transverse vibration mode-shapes, which were impossible to analyze via 2D modeling, are also analyzed by employing plate vibration theory. Different behaviors of soil and reinforcements in tension and compression are also considered for the first time in a 3D analytical investigation to achieve a more realistic result. The effect of different parameters on the natural frequencies of geosynthetic reinforced soil walls are investigated, including the soil to reinforcement stiffness ratio, reinforcement to wall stiffness ratio, reinforcement length, backfill width and length to height ratio of the wall, using the proposed analytical expressions. Finally, the results obtained from the analytical expressions proposed are compared with results from the finite element software Abaqus and other researchers’ results, showing that the proposed method has high accuracy. The proposed method will be a beginning of the 3D analytical modeling of reinforced soil walls.
 

Keywords: Analytical method, Reinforced Retaining Wall, Natural Frequency, Shape Mode, 3D Vibration.tion
Full-Text [PDF 835 kb]   (290 Downloads)    
Type of Study: s | Subject: Geotecnic
Received: 2016/10/22 | Accepted: 2017/03/14 | Published: 2020/06/9
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Darvishpour A, Ghanbari A, Hosseini S A A, Nekooei M. An Analytical Ssolution for Estimating the Effect of Soil-Structure Interaction on 3D Vibration Natural Frequency of Reinforced Retaining Walls. Journal of Engineering Geology. 2020; 13 (5) :23-58
URL: http://jeg.khu.ac.ir/article-1-2570-en.html


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Volume 13, Issue 5 (English article specials 2020) Back to browse issues page
نشریه زمین شناسی مهندسی Journal of Engineering Geology
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