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April 26, 2026Scientific ReportsOpen Access

Bearing mechanism and design optimization of screw piles in loess area

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Authors

HKHizbullah KhanZHZhiping HUFAFahad Alshawmar

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Overview

Randomized trial analyzes screw pile bearing capacity in loess foundations, suggesting design improvements for efficiency.

Key Points

  • The aim is to analyze screw piles for load transfer, failure modes, and bearing capacity to enhance design in loess areas.
  • Developed a numerical model using the 2D finite element method (FEM) in ABAQUS.
  • Investigated effects of pile-soil interface, soil shear strength, and screw pile dimensions on bearing capacity.
  • Validated the model against experimental data, ensuring less than 20% difference.
  • Key factors like soil shear strength index, screw spacing, and screw thickness significantly affect bearing capacity.
  • Screw piles demonstrated a bearing capacity 1.5-2 times greater than circular straight piles.
  • Failure mode changes from linear along the soil to concentrated at the pitch based on spacing adjustments.

Cite This Study

Khan et al. (2026) studied this question.

synapsesocial.com/papers/69edac794a46254e215b4366https://doi.org/10.1038/s41598-026-49317-1
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