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Comparative Analysis of Bamboo Pile and Sheet Pile Reinforcement for Steep Road Embankments on Narrow Riverbank Sites Using Finite Element Method

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Abstract:

Road embankments built along narrow riverbanks often face stability challenges where conventional sloped designs are not feasible. This study compares the performance of bamboo pile layers and sheet pile systems as slope reinforcement solutions for a 4-m-high embankment on sandy silt soil. Finite element analysis was conducted using PLAXIS 2D to evaluate the factor of safety (FOS) and lateral displacement for each system. The unreinforced slope yielded a FOS of 0.397, indicating instability. Bamboo pile reinforcement improved the FOS to 0.449 with a lateral displacement of 0.8 m, while the sheet pile achieved a FOS of 1.643 and displacement of 0.17 m. These results demonstrate that although sheet piles meet the engineering stability threshold (FOS ≥ 1.5), bamboo layers offer a sustainable and low-cost alternative that requires further structural optimization. The novelty of this research lies in the application of layered bamboo pile reinforcement for spatially constrained sites, providing insights into locally sourced reinforcement strategies under limited land conditions.

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Periodical:

Construction Technologies and Architecture (Volume 24)

Pages:

87-94

DOI:

https://doi.org/10.4028/p-TRatL3

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Online since:

June 2026

Authors:

Nur Latifah Khomsiati*, Iman Agus Faisal, Atika Praptawati

Keywords:

Bamboo Pile, Narrow Construction Site, Plaxis, Sandy Silt, Sheet Pile, Slope Reinforcement

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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