Comparing a single pile's axial bearing capacity using numerical modeling and analytical techniques

Ghiasi, Vahed; Eskandari, Satar

doi:10.1016/j.rineng.2023.100893

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…It was initially created to simulate the behavior of shotcrete but is also effective for soil improvement, for example, with jet grout columns. In the shotcrete model, the development of stiffness with time complies with the recommendation of the CEB-FIP model code [66][67][68][69][70][71][72]:…”

Section: Finite Element Mesh Boundary Conditions and Analysis Proceduresmentioning

confidence: 99%

Numerical Analysis of Time-Dependent Strength and Stiffness in Palm Oil Fuel Ash-Stabilized Soil: Early and Long-Term Effects

Al-Dalain,

Ezreig,

Ismail

2024

Civ Eng J

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Over the years, investigating the behavior of soft soil, stabilized using different techniques, has been recognized as a critical priority for geotechnical engineers. Numerous soil constitutive models have been utilized to simulate stabilized soil behavior, improve strength and ductility, and analyze load-deformation responses. However, further investigation is required to study stabilized soil's time-dependent strength and stiffness, especially at an early curing age. Early strength and stiffness development is crucial in engineering construction for improving building quality and efficiency and minimizing crack risk. Furthermore, estimating UCS from an early age aid in safety evaluation and ground-improvement analysis. Researchers are increasingly recognizing palm oil fuel ash (POFA) as an eco-friendly alternative to traditional soil stabilizers due to its abundant availability. This study proposes an advanced concrete constitutive model to simulate the time-dependent strength and stiffness of POFA-stabilized and cement-stabilized soil due to pozzolanic interactions. The model accurately measures strength and stiffness improvement from an early curing age to 28 days using finite element analysis (FEA) before then comparing the experimental results. Based on the experimental results, the UCS values of palm oil fuel ash-stabilized soil grew to 3.18 MPa and 3.89 MPa after seven and 28 days with an optimum content of 30% (POFA): 10% Magnesium Oxide (MgO). It exhibited a significant increase in early strength with 64.02% compared with cement-stabilized soil. For stiffness results, a slight increment of 9.26% was observed. Employing FEM, the sensitivity of the parameters to stress-strain behavior was investigated. Finally, the validity of the concrete constitutive model to predict the time-dependent strength and stiffness of stabilized soil was proved. Doi: 10.28991/CEJ-SP2024-010-05 Full Text: PDF

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Section: Finite Element Mesh Boundary Conditions and Analysis Proceduresmentioning

confidence: 99%

Numerical Analysis of Time-Dependent Strength and Stiffness in Palm Oil Fuel Ash-Stabilized Soil: Early and Long-Term Effects

Al-Dalain,

Ezreig,

Ismail

2024

Civ Eng J

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“…The bearing capacities of 10 m, 20 m, 30 m, 40 m, and 50 m long piles were investigated by Ghiasi and Eskandari [33] using numerical and theoretical methods. According to the results obtained, it was concluded that the results of the Peck et al method and the Meyerhof method were similar to the Plaxis 2D results [3,34].…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach Proposal for Estimation of Ultimate Pile Bearing Capacity Based on Pile Loading Test Data

Vural

Kabaca²,

POYRAZ>

2023

Applied Sciences

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Determining the ultimate bearing capacity of piled foundations has been one of the most important problems in geotechnical engineering. It has been observed that the pile loading test evaluation methods based on the mathematical model give values far away from the failure load, even in piles that have reached the failure state. For this reason, it is aimed at developing a new mathematical pile loading test evaluation method based on the load-settlement curve. It has been thought that the main problem with the pile loading test evaluation methods based on other mathematical models giving values far from the failure load is that the methods iterate excessively. The new method proposed in the study was developed by taking this situation into account. The performance of the proposed new method was investigated using eight pile loading tests conducted in various provinces of Turkey. In order to verify the reliability of the newly developed method, the study was completed by applying multiple comparison tests with other methods in the literature (theoretical methods, finite element analysis methods, and pile loading test evaluation methods). According to the applied analysis of variance, it was concluded that the proposed new method remained within the 95% confidence interval and was usable.

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Study and analysis of seasonal soil degradation in Lower Guinea and Forest Guinea

Diallo,

Tilioua,

Darraz

et al. 2023

Results in Engineering

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Comparing a single pile's axial bearing capacity using numerical modeling and analytical techniques

Cited by 5 publications

References 17 publications

Numerical Analysis of Time-Dependent Strength and Stiffness in Palm Oil Fuel Ash-Stabilized Soil: Early and Long-Term Effects

Numerical Analysis of Time-Dependent Strength and Stiffness in Palm Oil Fuel Ash-Stabilized Soil: Early and Long-Term Effects

A Novel Approach Proposal for Estimation of Ultimate Pile Bearing Capacity Based on Pile Loading Test Data

Study and analysis of seasonal soil degradation in Lower Guinea and Forest Guinea

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