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<p>In this numerical study, to accurately simulate the geocell three-dimensional geometry and its diverse and complex behavioral mechanisms, the geocell and soil were simulated separately using the 3-dimensional numerical modeling finite difference method. For model validation, a laboratory test from the literature on a single geocell-reinforced soil sample was numerically simulated, and the results were compared. The model was then extended to the geocell-reinforced unpaved road embankment, and comprehensive sensitivity analyses were performed to explore the effectiveness of different parameters on geocell-reinforced soil improvement. The influence of the infilled soil on the performance of this reinforcing system was also evaluated to investigate the suitability of various soil types for cellular geosynthetic reinforcements and the potential for cost reduction in providing appropriate road soil layers. Furthermore, the optimal placement pattern of geocell reinforcing layers in a road embankment was investigated to achieve a cost-effective design.</p>

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Numerical Analysis of the Cellular Geosynthetics Performance in Unpaved Roads and Influencing Factors

  • 期刊论文

  • 发表日期：

    2025年2月26日

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  • Saeed Kouzegaran,
  • Mohammad Oliaei

摘要

In this numerical study, to accurately simulate the geocell three-dimensional geometry and its diverse and complex behavioral mechanisms, the geocell and soil were simulated separately using the 3-dimensional numerical modeling finite difference method. For model validation, a laboratory test from the literature on a single geocell-reinforced soil sample was numerically simulated, and the results were compared. The model was then extended to the geocell-reinforced unpaved road embankment, and comprehensive sensitivity analyses were performed to explore the effectiveness of different parameters on geocell-reinforced soil improvement. The influence of the infilled soil on the performance of this reinforcing system was also evaluated to investigate the suitability of various soil types for cellular geosynthetic reinforcements and the potential for cost reduction in providing appropriate road soil layers. Furthermore, the optimal placement pattern of geocell reinforcing layers in a road embankment was investigated to achieve a cost-effective design.