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Geomechanics and Engineering Volume 35, Number 5, December10 2023 , pages 555-570 DOI: https://doi.org/10.12989/gae.2023.35.5.555 |
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The role of wall configuration and reinforcement type in selecting the pseudo-static coefficients for reinforced soil walls |
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Majid Yazdandoust, Amirhossein Rasouli Jamnani and Mohsen Sabermahani
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| Abstract | ||
| In the current study, a series of experimental and analytical evaluations were performed to introduce the horizontal pseudo static coefficient (kh) as a function of the wall configuration and the reinforcement type for analyzing reinforced soil walls. For this purpose, eight shaking table tests were performed on reduced-scale models of integrated and two-tiered walls reinforced by metal strip and geogrid to determine the distribution of dynamic lateral pressure in the walls. Then, the physical models were analyzed using Mononobe-Okabe method to estimate the value of kh required to establish the dynamic lateral pressures similar to those observed in shaking table tests. Based on the results, the horizontal pseudo static coefficient and the position of resultant lateral force (R) were introduced as a function of the horizontal peak ground acceleration (HPGA), the wall configuration, the reinforcement type as well as maximum wall displacement. | ||
| Key Words | ||
| pseudo static coefficient; reinforced soil wall; shaking table test; tiered configuration | ||
| Address | ||
| Majid Yazdandoust: Department of Civil Engineering, University of Qom, Qom, Iran Amirhossein Rasouli Jamnani: Department of Civil Engineering, University College of Rouzbahan, Sari, Iran Mohsen Sabermahani: School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran | ||