Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil

Piles provide a convenient solution for heavy structures, where the foundation soil bearing capacity, or the tolerable settlement may be exceeded due to the applied loads. In cohesionless soils, the two frequently used pile installation methods are driving and drilling (or boring). This paper review...

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Autores principales:	Hany El Naggar, Islam Ezzeldin
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	piles pile design pile capacity fraction angle pile load tests Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/9fecb564d414429fad582e25fdb8cbef
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spelling	oai:doaj.org-article:9fecb564d414429fad582e25fdb8cbef2021-11-25T17:43:11ZEvaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil10.3390/geosciences111104722076-3263https://doaj.org/article/9fecb564d414429fad582e25fdb8cbef2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3263/11/11/472https://doaj.org/toc/2076-3263Piles provide a convenient solution for heavy structures, where the foundation soil bearing capacity, or the tolerable settlement may be exceeded due to the applied loads. In cohesionless soils, the two frequently used pile installation methods are driving and drilling (or boring). This paper reviews the results of a large database of pile load tests of driven and drilled piles in cohesionless soils at various locations worldwide. The load test results are compared with the static analysis design method for single piles recommended in the Canadian Foundation Engineering Manual (CFEM) and other codes and standards such as the American Association of State Highway and Transportation Officials, Federal Highway Administration, American Petroleum Institute, Eurocode, and the Naval Facilities Engineering Command. An improved pile design procedure is proposed linking the pile design coefficients <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mi>β</mi><mo>)</mo></mrow></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mrow><msub><mi>N</mi><mi>t</mi></msub></mrow><mo>)</mo></mrow></mrow></semantics></math></inline-formula> to the friction angle of the soil, rather than employing the generalized soil type grouping scheme previously used in the CFEM. This improvement included in the new version of the CFEM 2021 produces a more unified value of the pile capacity calculated by different designers, reducing the obtained design capacity discrepancies.Hany El NaggarIslam EzzeldinMDPI AGarticlepilespile designpile capacityfraction anglepile load testsGeologyQE1-996.5ENGeosciences, Vol 11, Iss 472, p 472 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	piles pile design pile capacity fraction angle pile load tests Geology QE1-996.5
spellingShingle	piles pile design pile capacity fraction angle pile load tests Geology QE1-996.5 Hany El Naggar Islam Ezzeldin Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil
description	Piles provide a convenient solution for heavy structures, where the foundation soil bearing capacity, or the tolerable settlement may be exceeded due to the applied loads. In cohesionless soils, the two frequently used pile installation methods are driving and drilling (or boring). This paper reviews the results of a large database of pile load tests of driven and drilled piles in cohesionless soils at various locations worldwide. The load test results are compared with the static analysis design method for single piles recommended in the Canadian Foundation Engineering Manual (CFEM) and other codes and standards such as the American Association of State Highway and Transportation Officials, Federal Highway Administration, American Petroleum Institute, Eurocode, and the Naval Facilities Engineering Command. An improved pile design procedure is proposed linking the pile design coefficients <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mi>β</mi><mo>)</mo></mrow></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mo>(</mo><mrow><msub><mi>N</mi><mi>t</mi></msub></mrow><mo>)</mo></mrow></mrow></semantics></math></inline-formula> to the friction angle of the soil, rather than employing the generalized soil type grouping scheme previously used in the CFEM. This improvement included in the new version of the CFEM 2021 produces a more unified value of the pile capacity calculated by different designers, reducing the obtained design capacity discrepancies.
format	article
author	Hany El Naggar Islam Ezzeldin
author_facet	Hany El Naggar Islam Ezzeldin
author_sort	Hany El Naggar
title	Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil
title_short	Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil
title_full	Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil
title_fullStr	Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil
title_full_unstemmed	Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil
title_sort	evaluation of the static design procedure in the canadian foundation engineering manual for piles in cohesionless soil
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9fecb564d414429fad582e25fdb8cbef
work_keys_str_mv	AT hanyelnaggar evaluationofthestaticdesignprocedureinthecanadianfoundationengineeringmanualforpilesincohesionlesssoil AT islamezzeldin evaluationofthestaticdesignprocedureinthecanadianfoundationengineeringmanualforpilesincohesionlesssoil
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Evaluation of the Static Design Procedure in the Canadian Foundation Engineering Manual for Piles in Cohesionless Soil

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