Analysis of reinforced retaining wall failure based on reinforcement length
Autor: | Yong-Joo Lee, Dong-Wook Oh, Suk Min Kong, So-Yeon Lee, Hyuk-Sang Jung |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Materials science
Length 0211 other engineering and technologies 02 engineering and technology 010502 geochemistry & geophysics Retaining wall 01 natural sciences Stress (mechanics) Lateral earth pressure Reinforcement 021101 geological & geomatics engineering 0105 earth and related environmental sciences business.industry Numerical analysis Straight parts Economic feasibility Structural engineering Hydraulic engineering Geotechnical Engineering and Engineering Geology Curved parts Mechanics of Materials Fracture (geology) Reinforced retaining wall business TC1-978 Energy (miscellaneous) |
Zdroj: | International Journal of Geo-Engineering, Vol 12, Iss 1, Pp 1-14 (2021) |
ISSN: | 2198-2783 2092-9196 |
Popis: | Reinforced retaining walls are structures constructed horizontally to resist earth pressure by leveraging the frictional force imparted by the backfill. Reinforcements are employed because they exhibit excellent safety and economic efficiency. However, insufficient reinforcement can lead to collapse, and excessive reinforcement reduces economic efficiency. Therefore, it is important to select the appropriate type, length, and spacing of reinforcements. However, in actual sites, although the stress and fracture mechanisms in the straight and curved sections of reinforced soil retaining walls differ, the same amount of reinforcements are typically installed. Such an approach can lead to wall collapse or reduce economic feasibility. Therefore, in this study, the behaviours of straight and curved sections fortified with reinforcements of various lengths (1, 3, 5, and 7 m) are predicted through a three-dimensional numerical analysis. The retaining walls are of the same height, but the reinforcement variations in the aforementioned sections influence the wall behaviour differently. Based on the results, the optimum reinforcement lengths for the straight and curved parts were selected. By installing reinforcements of different lengths in these sections, the maximum reinforcing effect with minimum reinforcement was derived. This study further found that the curved section of the wall required more reinforcements, and the reinforcement lengths for the curved and straight sections should be separately optimized. |
Databáze: | OpenAIRE |
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