Experimental and numerical analyses of a deep foundation containing a single defective pile

Neto, Osvaldo de Freitas; Cunha, Renato Pinto da; Albuquerque, Paulo José Rocha de; Garcia, Jean Rodrigo; Santos, Olavo Francisco dos

doi:10.1590/1679-78255827

Cited by 7 publications

(1 citation statement)

References 10 publications

(7 reference statements)

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“…Various studies have been conducted on the subject of defective piles. In general, however, these studies are mainly of theoretical, numerical or associated with experiments on reducedscale models studies, for example the studies of Makarchian and Poulos (199 4), Xu (2000), Novak et al (2005), Cunha et al (2010), and Freitas Neto et al (2013, 2020.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Defective Cast in Place Piles

Al-Saidi

Al-Mosawe

Al-Shakarchi

2021

jcoeng

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This paper deals with testing defected model piles in the soil in order to study their behavior. In this respect, the results of model pile tests are discussed either geotechnically or structurally according to the type of failure. Two parameters were studied in order to evaluate the general behavior of defective piles. These parameters include the defect location and the defect type for floating and end bearing pile. The results of the experimental work indicated that the critical case for floating pile is seen to be when the defect of (5%) at the first third of the pile length at which the decrease in the bearing capacity is about (21%), while the decrease in the bearing capacity is found to be (14%) and (10%), when the defect is at the middle and the lower third of the pile length, respectively. The decrease in the bearing capacity for floating pile is found to be (31%) and (21%) for void and neck defect, respectively, while the decrease in the bearing capacity for end bearing pile is found to be (43%) and (52%) for void and neck defect, respectively.

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Section: Introductionmentioning

confidence: 99%

Behavior of Defective Cast in Place Piles

Al-Saidi

Al-Mosawe

Al-Shakarchi

2021

jcoeng

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Experimental and Numerical Behavior of Horizontally Loaded Piled Rafts with a Defective Pile

et al. 2022

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The present paper aims to investigate the effects of defective piles in horizontally loaded piled raft foundations. Close to real scale foundation models of defective and intact three-piled systems were submitted to horizontal load tests. The models used bored type piles drilled with 5 m in length and 0.25 m in diameter, connected to a concrete raft founded on a tropical soil pro le at the University of Campinas research site. Based on the experimental data, a tridimensional nite element analysis was initially calibrated and consequently used to study the effects of the defective element at the pile load distribution and the horizontal subgrade forces at the pile shaft. The results show that the presence of a defective pile increases the raft tilting, which affects both vertical and horizontal load distributions among the raft and the piles, and among trailing and leading piles.

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