Pile Behavior—Consequences of Geological and Construction Imperfections

Poulos, Harry G.

doi:10.1061/(asce)1090-0241(2005)131:5(538)

Cited by 57 publications

(16 citation statements)

References 17 publications

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“…Ground freezing has been used by Donohoe et al (1981), jet grouting by Isenhower et al (1981) and soil by Shao et al (1981), among other techniques. Poulos (2005) reports various techniques for remediation of structures that have settled differentially. The techniques can be grouped into categories of volume reduction and volume increase.…”

Section: Demonstrating Sustainable Constructionmentioning

confidence: 99%

Addressing some current challenges in ground improvement

Mitchell

Kelly

2013

Proceedings of the Institution of Civil Engineers - Ground Impr

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Ground improvement will be critically important in future geotechnical practice to achieve reductions in quantities of material used, reduction in carbon footprint, prevention and mitigation of natural disasters, treatment and recycling of industrial wastes, remediation of polluted soils, development of brownfield sites and maintenance and rehabilitation of existing structures. Challenges exist in providing cost-effective sustainable ground improvement under current economic conditions. These issues are addressed under categories of reduce, reuse and recycle in the first part of the paper. Selection processes for ground improvement methodologies, improved analysis, knowledge of long-term performance and understanding of effects of variability are required to develop more efficient designs. These issues are addressed in the second part of the paper.

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Section: Demonstrating Sustainable Constructionmentioning

confidence: 99%

Addressing some current challenges in ground improvement

Mitchell

Kelly

2013

Proceedings of the Institution of Civil Engineers - Ground Impr

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“…Sometimes, a combination of both techniques is used to support multi layer soil as discussed by . Poulos (2005) classified the defects in bored pile construction into two main categories which are:…”

Section: Introductionmentioning

confidence: 99%

“…Inadequate geotechnical investigation: Poulos (2005) explained that inadequacies are usually related to an insufficient number or depth of boreholes or probes to identify stratigraphic variations across the site, or inadequate testing to quantify the relevant geotechnical parameters. Stratigraphic variations across the site may arise from the geological processes at the site which have resulted in its present ground profile.…”

Section: Introductionmentioning

confidence: 99%

Application of FEM to Evaluate Pile Loading Test in Some Special Situations

Hemada¹,

Abdel-Fattah²,

Abdel-Fattah³

2014

Tunneling and Underground Construction

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Based on results of pile load tests, this paper demonstrated the procedure of employing the finite element method (FEM) to predict the behavior of bored piles, especially the defective piles, in some special situations. The main aspects of the FEM simulation of the defective behaviors were explored. The pile defects caused by geotechnical and construction related problems were discussed and a procedure for tracing the causes of these defects was proposed. This paper suggests detecting the defects at pile shaft and/or piling base by controlling interface parameters. To verify the feasibility of the proposed procedure, two case studies on defective piles were thoroughly investigated. The first case is about a bored pile in granular soil; the second one is for a rock socket. Good agreement between predicted and measured responses was observed.

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“…Zhang and Wang [3] carried out a centrifuge model on a group of bored piles containing soft toes and short piles not reaching the designed level, they concluded that the capacities of the soft toes piles, and short piles were reduced by 15%, and 56%, respectively. Poulos [6] stated that the effect of construction process on the pile can affect the pile performance and causes pile defects. He also classified these defects into natural sources, inadequate ground investigation, construction causes, pile loading tests, and loading during operation.…”

Section: Introductionmentioning

confidence: 99%

Bulging as a pile imperfection

Wakil

Kassim

2010

Alexandria Engineering Journal

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Piled foundation is a method of overcoming difficulties of founding on soft soils to ensure structural safety by transferring structural load through weak soil to a stiff stratum. Due to piles importance, it is becoming necessary to avoid pile defects. These defects arouse from inadequate ground investigations, construction phases, pile loading test, and natural unforeseen geological causes. In this paper bulging is studied as a pile imperfection. The effects of bulging width, length, and shape on the pile ultimate load are investigated. Bulging may increase pile ultimate load though it is still considered as a pile defect. It was found that bulging can increase the ultimate pile load up to 200%. ª 2010 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V.All rights reserved.

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Pile Behavior—Consequences of Geological and Construction Imperfections

Cited by 57 publications

References 17 publications

Addressing some current challenges in ground improvement

Addressing some current challenges in ground improvement

Application of FEM to Evaluate Pile Loading Test in Some Special Situations

Bulging as a pile imperfection

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