Abstract
In order to further analyze the mechanical and deformation characteristics of geogrid-reinforced soil retaining wall in the high backfill road section, this study experimentally investigates the effects of retaining wall slope, reinforcement layers, and reinforcement position on the bearing capacity and deformation characteristics of geogrid-reinforced soil retaining walls. The distribution of earth pressure in the reinforced soil retaining wall is also analyzed. The test results indicate that the ultimate bearing capacity of the retaining wall can be effectively improved by increasing the geogrid layers. The overall stability of the retaining wall decreases as the slope increases. When the number of reinforcement layers is consistent, the arrangement of geogrid in the upper part of the retaining wall can better control the deformation of the retaining wall and enhance the overall stability of the retaining wall. Under the vertical load, the horizontal displacement of the upper part of the wall is larger than that of the lower part, and the maximum horizontal displacement of the wall occurs at the top of the wall. The vertical earth pressure is not completely transmitted along the vertical direction but is transmitted downward along a certain diffusion angle. The growth rate of the upper earth pressure decreases gradually compared to that of the lower earth pressure as the load increases.
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Acknowledgements
This research work was funded by the National Natural Science Foundation of China (52308344, 42077249), the Innovation and Entrepreneurship Training Program for College Students of Hefei University of Technology (X202310359210), the Anhui Provincial Natural Science Foundation (2308085QE190), the Opening Project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology) (KFJJ23-05 M), and the Fundamental Research Funds for the Central Universities (JZ2023HGTA0193, JZ2023HGQA0094).
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Yalin Zhu, Zijian Zhan and Panpan Guo. The first draft of the manuscript was written by Yin Hong, Min He, and Renyi Chen. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Zhu, Y., Zhan, Z., Hong, Y. et al. Experimental Study on Mechanical and Deformation Characteristics of Geogrid-Reinforced Soil Retaining Walls. Int. J. of Geosynth. and Ground Eng. 10, 74 (2024). https://doi.org/10.1007/s40891-024-00585-9
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DOI: https://doi.org/10.1007/s40891-024-00585-9