Analytical investigation of pile–soil interaction in sand under axial and lateral loads

Abdel-Mohti, Ahmed; Khodair, Yasser

doi:10.1007/s40091-014-0054-5

Cited by 11 publications

(4 citation statements)

References 29 publications

(18 reference statements)

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“…In the past, piles were unquestionably strengthened [4]. Nowadays, the designers are minimizing the length of reinforcing bars; therefore, they are scaling back the number of piles [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. This reduction needs excellent separation for the cases wherever the piles would entirely or partly require reinforcement, and in cases where the reinforcement has been eliminated.…”

Section: Basic Theory Of Reinforcement Concrete Pile On a Lateral Loadmentioning

confidence: 99%

Force Performance Analysis of Pile Behavior of the Lateral Load

Youssouf

Dembele

et al. 2019

Infrastructures

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This study was focused on the performance of the pile force at the lateral load of an arched bridge. The effect of the compression of arch bridges creates a large horizontal load. Therefore, it is one of the most important factors in the dimensioning of piles. The study aims to make a comparative study between the results obtained in the field, and those obtained by a 3D model defined as a Finite Element (FE) of a drilled pile, subjected to different lateral loads applied at exact time intervals. Moreover, the study was intended to determine the influence of the lateral load applied to a different pile diameter using the FE model. Thus, the unified FEA software Abaqus™ by Dassault systèmes®carried out various processing procedures, namely soil FE modeling, pile FE modeling, soil-pile interface, Mesh, and boundary conditions, to carry out an effective and predictive piles behavior analysis. Based on the Mohr-Coulomb criterion, the soil is considered to be stratified with elastoplastic behavior, whereas the Reinforcement Concrete Pile (RCP) was assumed to be linear isotropic elastic, integrating the concrete damage plasticity. Since the bridge is an arched bridge, the lateral load induced was applied to the head of the piles through a concentrated force to check the pile strength, for which the displacement, stress and strain were taken into account throughout, along the pile depth. The lateral displacement of the pile shows a deformation of the soil as a function of its depth, with different layers crossed with different lateral loads applied. Thus, from the study comparing the results of the FE measurements with the data measured in the field, added to the statistical analyses are as follows: Decrease of the displacement and stress according to the diameter, taking into account the different diameter. The foundations receive loads of the superstructure to be transmitted to the ground. Thus, the piles are generally used as a carrier transmitting loads on the ground. One of the important factors in the durability of the bridge depends more on the strength of these piles. This makes it necessary to study the reinforced concrete foundations because of their ability to resist loads of the structure, and the vertical and lateral loads applied to the structure. This implies an evaluation of the responses of the RCP according to the different lateral loads.

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Section: Basic Theory Of Reinforcement Concrete Pile On a Lateral Loadmentioning

confidence: 99%

Force Performance Analysis of Pile Behavior of the Lateral Load

Youssouf

Dembele

et al. 2019

Infrastructures

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“…The term "solid waste" refers to all solids and semi-solids. Improper solid waste management has negative consequences on the environment, which could lead to disease outbreaks and epidemics [1]. The materials used as soil enhancement additives are diverse in terms of their qualities, shapes, and characteristics.…”

Section: Introductionmentioning

confidence: 99%

An Innovative Method for Damping the Seismic Waves on Pile Foundations Using A Mixture of Rubber-Binder Jacketing

M. Mohamed,

M. Ibrahim,

G. Majeed

et al. 2023

DJES

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Earthquakes are sudden and unpredictable natural activity that causes severe damage. As a result of the increasing seismic activity in Iraq, it has become necessary to conduct a study on the impact of earthquakes and methods of damping them. Since traditional seismic damping methods for construction are very expensive, alternative solutions are necessary. Therefore, this research proposes a new damping method that depends on surrounding the piles with rubber crumbs, as the rubber works to dampen the seismic force before it reaches the piles before moving to the structure. This method is considered a type of sustainability. The study included a set of variables, including (the thickness of the rubber that surrounds the piles, and the position of placing the rubber that sleeved the piles). The tests were carried out using the shaking table device. The results showed that surrounding the piles with rubber gave distinct results in damping the seismic force and it is considered an easy damping method due to its ease of implementation, as well as its economic feasibility. The results showed for the models that surround the rubber in the upper part of the pile, an increase in the values of the acceleration of the structure and a decrease in the values of the movement speed of the structure, the values of the lateral displacement of the structure. The models in which the rubber surrounds the middle and bottom part of the pile, the results were close to the reference model.

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“…Currently, the use of offshore pile foundations has become commonplace [1][2][3], especially for bridge construction due to its structural efficiency, low cost, and ease of construction [4][5][6]. In bridge construction, pile foundations are used to transmit the load of the superstructure and substructure to a lower level, which is a stronger soil layer in the soil mass [7]. However, several issues, including the scour phenomenon, must be addressed to ensure the safety and stability of the offshore pile foundation which will directly affect the bridge structure [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Local Scour around Three Cylindrical Piles in a Tandem Arrangement

Tang

Puspasari

2021

Water

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Scouring is one of the most common potential causes of bridge pile foundation failure, with loss of life, economic and environmental impacts. Comprehensive studies on the numerical simulation of local scour around pile groups are still limited. This paper presents a numerical simulation using Flow-3D software to calculate the maximum sediment scour depth and investigate the mechanism around the groups of three cylinders in a tandem arrangement. A validation using the experimental study was carried out to confirm the reliability of the present numerical model. By using the Van Rijn transport rate equation and RNG k-ε turbulence model, the results of time evolution of scour depth and bed elevation contour show good agreement with the experimental study. The numerical simulation of three cylinders in a tandem arrangement were conducted with pile spacing ratios, G/D of 2 and 3. The local scour is affected by the horseshoe vortex from the downflow driven by the downward pressure gradient and rotates in front of the pile and the high bed shear stress, triggered by flow acceleration. The deepest maximum local scour depth is always obtained by the front pile as a shield pile, followed by the piles behind. The trend of the maximum local scour depth in a tandem arrangement is in accordance with the experimental studies and has a better agreement than previous numerical studies with the same model setup. This means that the numerical model used to simulate pile groups is accurate and capable of calculating the depth of sediment scour.

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Analytical investigation of pile–soil interaction in sand under axial and lateral loads

Cited by 11 publications

References 29 publications

Force Performance Analysis of Pile Behavior of the Lateral Load

Force Performance Analysis of Pile Behavior of the Lateral Load

An Innovative Method for Damping the Seismic Waves on Pile Foundations Using A Mixture of Rubber-Binder Jacketing

Numerical Simulation of Local Scour around Three Cylindrical Piles in a Tandem Arrangement

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