Simplified analysis of laterally loaded pile groups

Abdrabbo, F. M.; Gaaver, Khaled E.

doi:10.1016/j.aej.2012.05.005

Cited by 23 publications

(8 citation statements)

References 20 publications

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“…These results fairly agree with the observations of Reese and Van Impe (2010) [32] who reported that the depth up to 10D is of predominantly importance in soil-pile interaction in case of lateral loading. Abdrabbo and Gaaver [33] also suggested that the effective depth of a flexible laterally loaded pile embedded in cohesionless soil is about 16 times the pile diameter.…”

Section: Effect Of Pile Length Variation On Lateral Capacity and Bending Moment Profile Of Single Pilementioning

confidence: 98%

Numerical Study of Laterally Loaded Piles in Soft Clay Overlying Dense Sand

2021

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This paper presents the results of three dimensional finite element analysis of laterally loaded pile groups of configuration 1×1, 2×1 and 3×1, embedded in two-layered soil consisting of soft clay at liquid limit overlying dense sand using Plaxis 3D. Effects of variation in pile length (L) and clay layer thickness (h) on lateral capacity and bending moment profile of pile foundations were evaluated by employing different values of pile length to diameter ratio (L/D) and ratio of clay layer thickness to pile length (h/L) in the analysis. Obtained results indicated that the lateral capacity reduces non-linearly with increase in clay layer thickness. Larger decrease was observed in group piles. A non-dimensional parameter Fx ratio was defined to compare lateral capacity in layered soil to that in dense sand, for which a generalized expression was derived in terms of h/L ratio and number of piles in a group. Group effect on lateral resistance and maximum bending moment was observed to become insignificant for clay layer thickness exceeding 40% of pile length. For a fixed value of clay layer thickness, lateral capacity and bending moment in a single pile increased significantly with increase in pile length only up to an optimum embedment depth in sand layer which was found to be equal to three times pile diameter and 0.21 times pile length for pile with L/D 15. Scale effect on lateral capacity has also been studied and discussed. Doi: 10.28991/cej-2021-03091686 Full Text: PDF

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Section: Effect Of Pile Length Variation On Lateral Capacity and Bending Moment Profile Of Single Pilementioning

confidence: 98%

Numerical Study of Laterally Loaded Piles in Soft Clay Overlying Dense Sand

2021

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“…Actually, these piles are usually working on the slope with different layered soil where the effect of slope is conjunction with lateral loading. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] listed some criteria that the piles must satisfy including safety under loading, small enough deflection. Currently, the improved Winkler spring method is one of the most popular accepted design methods of laterally loaded piles on the horizontal surface in which the soil resistance is modeled by a number of soil springs along the pile, commonly known as p-y curves method.…”

Section: Introductionmentioning

confidence: 99%

“…To address this problem, there have been a few investigations in the area of pile engineering, to obtain reliable solutions for the pile deformation under lateral loads on the layered slope (e.g. ) [2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Study the working of piles on the slope ground subjected to horizontal loading by numerical simulation method

Quoc

Thanh

Trung

et al. 2021

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Numerical modelling is an efficient method to investigate the effects of the distance from pile centreline to pile centreline on the working of laterally loaded piles considering the shear plastic deformations of the ground. The paper presents the research results the effects of piles spacing on the sloping ground including sand and clay layers subjected to horizontal loading according to the finite element method by ABAQUS software. Group of authors simulate the soil-pile interface, capable of incorporating the gapping and sliding in the soil-pile interfaces for both sand and clay layers. The research results are used to predict the lateral load-deformation of piles for different cases and comparison with published research results. On that basis predicting the suitable distance horizontal loading piles that a pile negligible influenced from adjacent pile on a slope. This is a matter of high scientific and practical significance in foundation engineering in general, as well as in calculating pile foundations on a slopes in particular.

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“…These were obtained from experimental tests on steel pipe piles with an outer diameter of about 30 cm, and which are not affected by the non-linearity of the pile material. Even recently new analytical methods based on the transfer curves have been developed [ 15 , 16 ] and new p-y curves were experimentally determined [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections

Stacul

Squeglia

2018

Materials

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A Boundary Element Method (BEM) approach was developed for the analysis of pile groups. The proposed method includes: the non-linear behavior of the soil by a hyperbolic modulus reduction curve; the non-linear response of reinforced concrete pile sections, also taking into account the influence of tension stiffening; the influence of suction by increasing the stiffness of shallow portions of soil and modeled using the Modified Kovacs model; pile group shadowing effect, modeled using an approach similar to that proposed in the Strain Wedge Model for pile groups analyses. The proposed BEM method saves computational effort compared to more sophisticated codes such as VERSAT-P3D, PLAXIS 3D and FLAC-3D, and provides reliable results using input data from a standard site investigation. The reliability of this method was verified by comparing results from data from full scale and centrifuge tests on single piles and pile groups. A comparison is presented between measured and computed data on a laterally loaded fixed-head pile group composed by reinforced concrete bored piles. The results of the proposed method are shown to be in good agreement with those obtained in situ.

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Simplified analysis of laterally loaded pile groups

Cited by 23 publications

References 20 publications

Numerical Study of Laterally Loaded Piles in Soft Clay Overlying Dense Sand

Numerical Study of Laterally Loaded Piles in Soft Clay Overlying Dense Sand

Study the working of piles on the slope ground subjected to horizontal loading by numerical simulation method

Analysis Method for Laterally Loaded Pile Groups Using an Advanced Modeling of Reinforced Concrete Sections

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