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<p>This study discusses the&#xa0;development of data-driven models to predict the shaft resistance and lateral displacement of tapered piles subjected to seismic loads. A comprehensive database of 3600 data points, derived from validated finite element analyses, was utilized to train and test evolutionary computing–based models. The proposed equations demonstrate high predictive accuracy, with coefficients of determination of 0.98 for shaft resistance and maximum lateral displacement. Statistical metrics, including mean absolute error and root mean square error (RMSE), and frequency of error analysis confirm the robustness of the models. Also, parametric analyses were carried out to understand the seismic response of tapered piles, where it was found that increasing pile taper angle increases shaft resistance and decreases lateral displacement. The findings of this research provide practical tools for engineers to optimize tapered pile designs in seismic-prone regions, bridging the gap between theoretical research and routine engineering practice. This study underscores the potential of tapered piles in improving seismic resilience while highlighting the need for further validation in field conditions.</p>

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Multi-scale Models to Estimate Shaft Resistance and Lateral Displacement of Tapered Pile Considering Seismic Effect

  • 期刊论文

  • 发表日期：

    2025年10月6日

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  • Saif Alzabeebee,
  • Thulfiqar S. Hussein

摘要

This study discusses the development of data-driven models to predict the shaft resistance and lateral displacement of tapered piles subjected to seismic loads. A comprehensive database of 3600 data points, derived from validated finite element analyses, was utilized to train and test evolutionary computing–based models. The proposed equations demonstrate high predictive accuracy, with coefficients of determination of 0.98 for shaft resistance and maximum lateral displacement. Statistical metrics, including mean absolute error and root mean square error (RMSE), and frequency of error analysis confirm the robustness of the models. Also, parametric analyses were carried out to understand the seismic response of tapered piles, where it was found that increasing pile taper angle increases shaft resistance and decreases lateral displacement. The findings of this research provide practical tools for engineers to optimize tapered pile designs in seismic-prone regions, bridging the gap between theoretical research and routine engineering practice. This study underscores the potential of tapered piles in improving seismic resilience while highlighting the need for further validation in field conditions.