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Article
Affiliation(s)

Department of Construction Engineering, October High Institute of Engineering and Technology, Al Jizah 12613, Egypt

ABSTRACT

This paper is a numerical study based on a number of numerical model tests of pile groups, subjected to static lateral loading. Tests were conducted on single, (2x1), and (2x3) pile groups at 3D (three-diameter) spacing. The model piles studied are concrete piles with 25 cm diameter and 10 m length founded in loose sand (Dr = 25%). The model is developed to study the effect of the number of piles in group on its lateral capacity on level ground and adjacent to a slope of inclination (3H:2V). The behavior of the piles was analyzed using a 3-D elasto-plastic FEM (finite element method) computer program Plaxis 3D ver. 2020, which represents a realistic model to simulate the problem. The response of the piles in the group was compared with the response of the single pile. It was found that the behavior of laterally loaded pile group depends largely on the arrangement of piles in group with respect to direction of load. In case of a slope it was found that the behavior of pile groups depends on the distance of lead row of pile groups from the slope crest (B/D) and arrangement of piles in group corresponding to load direction.

KEYWORDS

Pile groups, lateral load, sand, slope, numerical model, finite element method, Plaxis 3D 2020.

Cite this paper

Khaled M. M. Bahloul . (2026).Numerical Simulation of Laterally Loaded Pile Groups Adjacent to a Slope,  Journal of Civil Engineering and Architecture, August 2026, Vol. 20, No. 8, 340-346

References

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[2]       McVay, M., Casper, R., and Shang, T. 1995. “Lateral Response of Three Row Groups in Loose to Dense Sands at 3D and 5D Pile Spacing.” Proc. of ASCE 121 (GT5): 436-41.

[3]       Rollins, K. M., Peterson, K. T., and Weaver, T. J. 1998. “Lateral Load Behavior of Full-Scale Pile Group in Clay.” Proc. of ASCE 124 (GT6): 468-78.

[4]       Narasimha, S., Ramakrishna, V. G. S., and Babu, R. 1998. “Influence of Rigidity on Laterally Loaded Pile Groups in Marine Clay.” Journal of Geotechnical and Geoenvironmental Eng. 124 (6): 542-9.

[5]       Elhakim, A. F. 2016. “Three Dimensional Modeling of Laterally Loaded Pile Groups Resting in Sand.” Housing and Building National Research Center HBRC Journal 12: 78-87.

[6]       Gouw, T.-L. 2011. “Analysis on Laterally Loaded Group Piles by Plaxis 3D Foundation.” ComTech 2 (2): 1023-30.

[7]       Poulos, H. G. 1971. “Behaviour of Laterally Loaded Piles. II: Pile Groups.” Journal of the Soil Mechanics and Foundations Division, ASCE 97 (5): 733-51.

[8]       Pise, P. J. 1983. “Lateral Load Deflection Behaviour of Pile Groups.” India Geotech. J., Bambay, India, pp. 37-51.

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