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<p>This study investigates the settlement behavior of pile foundations under service and ultimate loads through an integrated approach combining field investigations, pressuremeter analyses, and three-dimensional finite element modeling (FEM). Settlement predictions from the Menard pressuremeter method, based on Ménard and Rousseau (1962) and Fascicule 62 – Title V, are systematically compared with MIDAS GTS NX simulations. Parametric analysis shows that variations in clay layer thickness and stiffness significantly influence pile settlement, with soft to medium upper layers dominating deformation. Comparative results indicate that pressuremeter-based estimates generally underestimate settlement by 10–25% relative to FEM predictions, reflecting soil nonlinearity, three-dimensional stress redistribution, and pile–soil interaction effects more accurately captured by the numerical model. Calibration with field and laboratory data enhances result reliability. Optimization of pile geometry demonstrates effective control of differential settlements and serviceability compliance. Limitations include uncertainties in empirical approaches and the restricted availability of long-term field data. The proposed comparative framework highlights the added value of integrating empirical and process-based modeling for improved foundation design in clayey soils.</p>

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Simulation and measurement of pile settlement: a comparative study of pressure metric and numerical approaches

  • 期刊论文

  • 发表日期：

    2026年7月15日

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  • Mohcene Serrai,
  • Samir Djenba,
  • Abdelhamid Khedidja,
  • Moufida El May

摘要

This study investigates the settlement behavior of pile foundations under service and ultimate loads through an integrated approach combining field investigations, pressuremeter analyses, and three-dimensional finite element modeling (FEM). Settlement predictions from the Menard pressuremeter method, based on Ménard and Rousseau (1962) and Fascicule 62 – Title V, are systematically compared with MIDAS GTS NX simulations. Parametric analysis shows that variations in clay layer thickness and stiffness significantly influence pile settlement, with soft to medium upper layers dominating deformation. Comparative results indicate that pressuremeter-based estimates generally underestimate settlement by 10–25% relative to FEM predictions, reflecting soil nonlinearity, three-dimensional stress redistribution, and pile–soil interaction effects more accurately captured by the numerical model. Calibration with field and laboratory data enhances result reliability. Optimization of pile geometry demonstrates effective control of differential settlements and serviceability compliance. Limitations include uncertainties in empirical approaches and the restricted availability of long-term field data. The proposed comparative framework highlights the added value of integrating empirical and process-based modeling for improved foundation design in clayey soils.