Field and Numerical Analysis of Cyclic Displacement Controlled Lateral Load Tests on Driven Piles in a Residual Soil

Consoli, Nilo César; Diambra, Andrea; Cordeiro, Renan Eduardo; Born, Ricardo Bergan; Cheng, Xiaoyang

doi:10.1007/s10706-022-02295-3

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…They also developed a correlation to calculate the lateral resistance based on fin parameters. Furthermore, Consoli et al [12] presented results from a new experimental field-testing program on steel-driven piles subjected to cyclic lateral loading with controlled displacement amplitudes.…”

Section: Introductionmentioning

confidence: 99%

Analyzing Laterally Loaded Piles in Multi-layered Cohesive Soils: a Hybrid Bnwf Approach With Validation and Parametric Study

Gendy

2024

Preprint

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Pile foundations frequently encounter lateral loads originating from various hazards. These types of foundations are commonly utilized in structures like bridges, retaining walls, and high-rise buildings. Analyzing laterally loaded piles presents a complex geotechnical problem that entails considering multiple interrelated design factors. It requires accounting for structural bending behavior, soil-structure interaction, soil nonlinearity, and optimizing for cost-effectiveness. In this paper, the commonly used approach beam on nonlinear Winkler foundation is developed. This methodology involves representing the pile using one-dimensional finite elements in the vertical direction, incorporating nonlinear bending stiffness. Additionally, soil deformation is determined using empirically derived P-y curves, which are obtained from full-scale field tests. By combining the pile stiffness with the soil stiffness considering the full interaction between the pile and the surrounding soil, the complete stiffness matrix of the single pile is formed, leading to a reduction in the number of equations that need to be solved. Both Euler and Timoshenko beams are considered, and the analysis is conducted using both finite elements and finite difference methods. The proposed hybrid approach is validated by comparing its results from analyzing laterally loaded piles in multi-layered soil profiles with those obtained from different models in existing literature and available field measurements. The well-known software ELPLA is equipped with the proposed hybrid technique. Furthermore, a parametric study investigates the behavior of laterally loaded pipe piles in soft and stiff clay, culminating in the presentation of dimensionless curves from this study.

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Section: Introductionmentioning

confidence: 99%

Analyzing Laterally Loaded Piles in Multi-layered Cohesive Soils: a Hybrid Bnwf Approach With Validation and Parametric Study

Gendy

2024

Preprint

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“…Results from geotechnical investigations (i.e., laboratory tests on soils supporting foundations) are traditionally used as input parameters for determining pile capaciousvertical, lateral and uplift capacities-using FE software such as PLAXIS and Abaqus [7]. Numerical analyses have efficiently been used to analyze the cyclic displacement of driven piles in residual soils [8]. Pile load tests play a significant role in understanding the behavior of piles under load.…”

Section: Introductionmentioning

confidence: 99%

Correlation between Pile Displacement from Pile Load Tests and FE Modelling: Case Study of Piles in Cawthorne Channel Area in Nigeria: Case Study of Piles in Cawthorne Channel Area in Nigeria

Nwankwo¹

2023

JES. Journal of Engineering Sciences

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Pile load static tests are used to confirm that a pile would not exceed a prescribed displacement at service or ultimate limit load. In this work, 600mm diameter steel piles were driven to 30m depths at the project site in the Niger Delta region of Nigeria. The relationship between pile displacements obtained from field pile load tests on these driven piles and those obtained from a finite element (FE) program, PileAXL, was studied. It was observed that for loads lower than the elastic limit of the soils at the pile toe, the FE program was able to accurately predict the displacements obtained from pile load tests. However, as the test loads on piles increased, the FE program was not able to accurately predict the displacements obtained from the pile load tests. This suggests that as significant plasticity sets in the end-bearing pile spring in the FE program, a more rigorous end bearing nonlinear spring would be required to model the load-displacement behavior of piles. This paper aims at presenting a technical reference to show that pile load test results can be easily validated using simplified FE models at low service loads using simplified nonlinear springs to model pile shaft interaction and end-bearing displacements.

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BPNN Based Multi-factor Synthesis Prediction Method for Coal Rock Fatigue Life

Han,

Zhang,

Gan

et al. 2023

Geotech Geol Eng

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Field and Numerical Analysis of Cyclic Displacement Controlled Lateral Load Tests on Driven Piles in a Residual Soil

Cited by 6 publications

References 25 publications

Analyzing Laterally Loaded Piles in Multi-layered Cohesive Soils: a Hybrid Bnwf Approach With Validation and Parametric Study

Analyzing Laterally Loaded Piles in Multi-layered Cohesive Soils: a Hybrid Bnwf Approach With Validation and Parametric Study

Correlation between Pile Displacement from Pile Load Tests and FE Modelling: Case Study of Piles in Cawthorne Channel Area in Nigeria: Case Study of Piles in Cawthorne Channel Area in Nigeria

BPNN Based Multi-factor Synthesis Prediction Method for Coal Rock Fatigue Life

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