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<p>There remains a need to improve the accuracy of engineering methods used to calculate the settlement of single piles. By combining analytical solutions for compressible and rigid piles in an elastic half-space, we develop a unified relationship for predicting pile settlement under compressive loading and pile displacement during uplift. The expression incorporates the axial stiffness (deformability) of the pile shaft and the layered structure of the soil profile. To evaluate pile settlement, a refined solution is proposed based on an equivalent soil shear modulus that captures the radial heterogeneity of the surrounding soil induced by pile installation. A comparison of results obtained using different calculation approaches, together with experimental data, shows that accounting for soil heterogeneity reduces the excessive conservatism of conventional homogeneous-soil settlement predictions for driven piles by approximately 25%.</p>

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Calculation of Pile Settlement and Uplift with Account for Shaft Deformability and Density Changes in the Contact Zone

  • 期刊论文

  • 发表日期：

    2026年3月1日

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  • S. G. Bezvolev,
  • P. M. Sazonov

摘要

There remains a need to improve the accuracy of engineering methods used to calculate the settlement of single piles. By combining analytical solutions for compressible and rigid piles in an elastic half-space, we develop a unified relationship for predicting pile settlement under compressive loading and pile displacement during uplift. The expression incorporates the axial stiffness (deformability) of the pile shaft and the layered structure of the soil profile. To evaluate pile settlement, a refined solution is proposed based on an equivalent soil shear modulus that captures the radial heterogeneity of the surrounding soil induced by pile installation. A comparison of results obtained using different calculation approaches, together with experimental data, shows that accounting for soil heterogeneity reduces the excessive conservatism of conventional homogeneous-soil settlement predictions for driven piles by approximately 25%.