Analysing Rectangular Pile Using One Dimensional Finite Element

Gendy, Mahmoud El; Ibrahim, Hassan; Arabi, Ibrahim El

doi:10.1007/s10706-020-01314-5

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…This paper introduces GEOTools, a developed program that is part of the ELPLA Program (El Gendy et al [15], [16], [17], El Kamash et al [23], Ibrahim et al [43], and Mohamedien et al [55]). GEOTools offers solutions for 22 geotechnical problems (EL Gendy MM et al [18], [19], [20], [21], [22]), including the analysis of laterally loaded piles using both the hybrid technique based on Mindlin and hyperbolic solutions, as well as the Bowles solution. The program incorporates various P-y curves proposed by Matlock [52], API [4], Reese et al [66], and Welch & Reese [79] for the design and analysis of laterally loaded piles in clay.…”

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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“…Pile foundations are an effective foundation treatment technology for supporting large loads from superstructures and ensuring small settlements. To further improve the bearing capacity and deformation of the pile without increasing the amount of concrete, an increasing number of typical cross‐sectional noncircular piles, such as rectangular piles 1,2 and X‐section cast‐in‐place reinforced concrete (XCC) piles, 3–5 have been used in recent years. The axially loaded noncircular pile‐soil system response is a typical 3D issue because it is cross‐sectionally nonaxisymmetric.…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensional analytical continuum model for axially loaded noncircular piles in multilayered elastic soil

Zhou

Liu

et al. 2021

Num Anal Meth Geomechanics

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To investigate the settlement response, load transfer behavior, and geometric effect of noncircular piles, a general three‐dimensional (3D) analytical continuum model for axially loaded noncircular pile‐multilayered homogeneous soil systems is presented. In the analysis, both the vertical and horizontal soil displacement fields are considered, and the variations of the soil displacement components are described by the three displacement transfer functions along the x, y, and z directions. The governing differential equations of noncircular piles and soil are derived by applying the principle minimum potential energy and variational method to the pile‐soil system. A complex variable function conformal mapping technique is introduced to overcome the complex boundary conditions of the transfer functions. Then, the numerical solutions of all the governing differential equations are simultaneously solved following an iterative algorithm. The reliability of this approach is validated by comparing some pile and soil responses with the results from existing analytical solutions or a rigorous finite element analysis. Differences in the settlement response and the axial force distribution between noncircular and circular piles are observed. In addition, the pile shaft resistance along the perimeter of the cross‐sections shows that a greater load is required in order to fully mobilize the ultimate resistance of the noncircular piles. We also compare the stress (σ1−σ3) contours of some typical noncircular piles with a circular pile, which provides useful insights into the geometric effect.

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Ultimate Bearing Capacity of Bored Piles Determined Using Finite Element Analysis and Cubic Regression

Dang,

Nguyen,

Nguyen

et al. 2024

Transp. Infrastruct. Geotech.

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Analysing Rectangular Pile Using One Dimensional Finite Element

Cited by 4 publications

References 30 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

Three‐dimensional analytical continuum model for axially loaded noncircular piles in multilayered elastic soil

Ultimate Bearing Capacity of Bored Piles Determined Using Finite Element Analysis and Cubic Regression

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