Numerical analysis of negative skin friction on piles in soft clay

Negative skin friction is considered one of the problems in the design of piled foundations in soft soil. The negative skin friction induces an additional compressive force on the pile called the dragload as well as, an additional pile movement called the downdrag. Ignoring the effect of negative sk...
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Autor*in:	Yasser M. El-Mossallamy [verfasserIn] Ashraf M. Hefny [verfasserIn] Magdy A. Demerdash [verfasserIn] Mohamed S. Morsy [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2013

Schlagwörter:	Pile–soil interaction Dragload Downdrag Neutral plane Slip length

Übergeordnetes Werk:	In: HBRC Journal - Taylor & Francis Group, 2017, 9(2013), 1, Seite 68-76
Übergeordnetes Werk:	volume:9 ; year:2013 ; number:1 ; pages:68-76

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1016/j.hbrcj.2013.02.006

Katalog-ID:	DOAJ036869406

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520			\|a Negative skin friction is considered one of the problems in the design of piled foundations in soft soil. The negative skin friction induces an additional compressive force on the pile called the dragload as well as, an additional pile movement called the downdrag. Ignoring the effect of negative skin friction in the design of piles leads to structural, and serviceability problems. The dragload depends on various factors such as, pile characteristics (method of installation, material, and surface treatment), soil properties (shear strength and compressibility), pile–soil relative movement, and degree of consolidation. In this paper, an axisymmetric finite element model was used to simulate, and analyze the pile–soil interaction problem of negative skin friction. The soft soil was simulated by the double hardening soil model, and the pile was described by a linear elastic model. A field case study for two instrumented end bearing driven pipe precast concrete piles in Bangkok soft clay was back analyzed. The various approaches to model the pile element, and load configurations were analyzed, and compared. An extensive parametric study was carried out to investigate the effect of different factors on the dragload value, neutral plane location, slip length, and pile movement.
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spelling	10.1016/j.hbrcj.2013.02.006 doi (DE-627)DOAJ036869406 (DE-599)DOAJb7ea3073f238466db8946bb19674815d DE-627 ger DE-627 rakwb eng TA1-2040 TH1-9745 Yasser M. El-Mossallamy verfasserin aut Numerical analysis of negative skin friction on piles in soft clay 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Negative skin friction is considered one of the problems in the design of piled foundations in soft soil. The negative skin friction induces an additional compressive force on the pile called the dragload as well as, an additional pile movement called the downdrag. Ignoring the effect of negative skin friction in the design of piles leads to structural, and serviceability problems. The dragload depends on various factors such as, pile characteristics (method of installation, material, and surface treatment), soil properties (shear strength and compressibility), pile–soil relative movement, and degree of consolidation. In this paper, an axisymmetric finite element model was used to simulate, and analyze the pile–soil interaction problem of negative skin friction. The soft soil was simulated by the double hardening soil model, and the pile was described by a linear elastic model. A field case study for two instrumented end bearing driven pipe precast concrete piles in Bangkok soft clay was back analyzed. The various approaches to model the pile element, and load configurations were analyzed, and compared. An extensive parametric study was carried out to investigate the effect of different factors on the dragload value, neutral plane location, slip length, and pile movement. Pile–soil interaction Dragload Downdrag Neutral plane Slip length Engineering (General). Civil engineering (General) Building construction Ashraf M. Hefny verfasserin aut Magdy A. Demerdash verfasserin aut Mohamed S. Morsy verfasserin aut In HBRC Journal Taylor & Francis Group, 2017 9(2013), 1, Seite 68-76 (DE-627)746064195 (DE-600)2715187-6 20909934 nnns volume:9 year:2013 number:1 pages:68-76 https://doi.org/10.1016/j.hbrcj.2013.02.006 kostenfrei https://doaj.org/article/b7ea3073f238466db8946bb19674815d kostenfrei http://www.sciencedirect.com/science/article/pii/S1687404813000072 kostenfrei https://doaj.org/toc/1687-4048 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2013 1 68-76
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allfieldsSound	10.1016/j.hbrcj.2013.02.006 doi (DE-627)DOAJ036869406 (DE-599)DOAJb7ea3073f238466db8946bb19674815d DE-627 ger DE-627 rakwb eng TA1-2040 TH1-9745 Yasser M. El-Mossallamy verfasserin aut Numerical analysis of negative skin friction on piles in soft clay 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Negative skin friction is considered one of the problems in the design of piled foundations in soft soil. The negative skin friction induces an additional compressive force on the pile called the dragload as well as, an additional pile movement called the downdrag. Ignoring the effect of negative skin friction in the design of piles leads to structural, and serviceability problems. The dragload depends on various factors such as, pile characteristics (method of installation, material, and surface treatment), soil properties (shear strength and compressibility), pile–soil relative movement, and degree of consolidation. In this paper, an axisymmetric finite element model was used to simulate, and analyze the pile–soil interaction problem of negative skin friction. The soft soil was simulated by the double hardening soil model, and the pile was described by a linear elastic model. A field case study for two instrumented end bearing driven pipe precast concrete piles in Bangkok soft clay was back analyzed. The various approaches to model the pile element, and load configurations were analyzed, and compared. An extensive parametric study was carried out to investigate the effect of different factors on the dragload value, neutral plane location, slip length, and pile movement. Pile–soil interaction Dragload Downdrag Neutral plane Slip length Engineering (General). Civil engineering (General) Building construction Ashraf M. Hefny verfasserin aut Magdy A. Demerdash verfasserin aut Mohamed S. Morsy verfasserin aut In HBRC Journal Taylor & Francis Group, 2017 9(2013), 1, Seite 68-76 (DE-627)746064195 (DE-600)2715187-6 20909934 nnns volume:9 year:2013 number:1 pages:68-76 https://doi.org/10.1016/j.hbrcj.2013.02.006 kostenfrei https://doaj.org/article/b7ea3073f238466db8946bb19674815d kostenfrei http://www.sciencedirect.com/science/article/pii/S1687404813000072 kostenfrei https://doaj.org/toc/1687-4048 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 9 2013 1 68-76
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source	In HBRC Journal 9(2013), 1, Seite 68-76 volume:9 year:2013 number:1 pages:68-76
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authorswithroles_txt_mv	Yasser M. El-Mossallamy @@aut@@ Ashraf M. Hefny @@aut@@ Magdy A. Demerdash @@aut@@ Mohamed S. Morsy @@aut@@
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The negative skin friction induces an additional compressive force on the pile called the dragload as well as, an additional pile movement called the downdrag. Ignoring the effect of negative skin friction in the design of piles leads to structural, and serviceability problems. The dragload depends on various factors such as, pile characteristics (method of installation, material, and surface treatment), soil properties (shear strength and compressibility), pile–soil relative movement, and degree of consolidation. In this paper, an axisymmetric finite element model was used to simulate, and analyze the pile–soil interaction problem of negative skin friction. The soft soil was simulated by the double hardening soil model, and the pile was described by a linear elastic model. A field case study for two instrumented end bearing driven pipe precast concrete piles in Bangkok soft clay was back analyzed. 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callnumber-first	T - Technology
author	Yasser M. El-Mossallamy
spellingShingle	Yasser M. El-Mossallamy misc TA1-2040 misc TH1-9745 misc Pile–soil interaction misc Dragload misc Downdrag misc Neutral plane misc Slip length misc Engineering (General). Civil engineering (General) misc Building construction Numerical analysis of negative skin friction on piles in soft clay
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topic_title	TA1-2040 TH1-9745 Numerical analysis of negative skin friction on piles in soft clay Pile–soil interaction Dragload Downdrag Neutral plane Slip length
topic	misc TA1-2040 misc TH1-9745 misc Pile–soil interaction misc Dragload misc Downdrag misc Neutral plane misc Slip length misc Engineering (General). Civil engineering (General) misc Building construction
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title	Numerical analysis of negative skin friction on piles in soft clay
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title_full	Numerical analysis of negative skin friction on piles in soft clay
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title_sort	numerical analysis of negative skin friction on piles in soft clay
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title_auth	Numerical analysis of negative skin friction on piles in soft clay
abstract	Negative skin friction is considered one of the problems in the design of piled foundations in soft soil. The negative skin friction induces an additional compressive force on the pile called the dragload as well as, an additional pile movement called the downdrag. Ignoring the effect of negative skin friction in the design of piles leads to structural, and serviceability problems. The dragload depends on various factors such as, pile characteristics (method of installation, material, and surface treatment), soil properties (shear strength and compressibility), pile–soil relative movement, and degree of consolidation. In this paper, an axisymmetric finite element model was used to simulate, and analyze the pile–soil interaction problem of negative skin friction. The soft soil was simulated by the double hardening soil model, and the pile was described by a linear elastic model. A field case study for two instrumented end bearing driven pipe precast concrete piles in Bangkok soft clay was back analyzed. The various approaches to model the pile element, and load configurations were analyzed, and compared. An extensive parametric study was carried out to investigate the effect of different factors on the dragload value, neutral plane location, slip length, and pile movement.
abstractGer	Negative skin friction is considered one of the problems in the design of piled foundations in soft soil. The negative skin friction induces an additional compressive force on the pile called the dragload as well as, an additional pile movement called the downdrag. Ignoring the effect of negative skin friction in the design of piles leads to structural, and serviceability problems. The dragload depends on various factors such as, pile characteristics (method of installation, material, and surface treatment), soil properties (shear strength and compressibility), pile–soil relative movement, and degree of consolidation. In this paper, an axisymmetric finite element model was used to simulate, and analyze the pile–soil interaction problem of negative skin friction. The soft soil was simulated by the double hardening soil model, and the pile was described by a linear elastic model. A field case study for two instrumented end bearing driven pipe precast concrete piles in Bangkok soft clay was back analyzed. The various approaches to model the pile element, and load configurations were analyzed, and compared. An extensive parametric study was carried out to investigate the effect of different factors on the dragload value, neutral plane location, slip length, and pile movement.
abstract_unstemmed	Negative skin friction is considered one of the problems in the design of piled foundations in soft soil. The negative skin friction induces an additional compressive force on the pile called the dragload as well as, an additional pile movement called the downdrag. Ignoring the effect of negative skin friction in the design of piles leads to structural, and serviceability problems. The dragload depends on various factors such as, pile characteristics (method of installation, material, and surface treatment), soil properties (shear strength and compressibility), pile–soil relative movement, and degree of consolidation. In this paper, an axisymmetric finite element model was used to simulate, and analyze the pile–soil interaction problem of negative skin friction. The soft soil was simulated by the double hardening soil model, and the pile was described by a linear elastic model. A field case study for two instrumented end bearing driven pipe precast concrete piles in Bangkok soft clay was back analyzed. The various approaches to model the pile element, and load configurations were analyzed, and compared. An extensive parametric study was carried out to investigate the effect of different factors on the dragload value, neutral plane location, slip length, and pile movement.
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title_short	Numerical analysis of negative skin friction on piles in soft clay
url	https://doi.org/10.1016/j.hbrcj.2013.02.006 https://doaj.org/article/b7ea3073f238466db8946bb19674815d http://www.sciencedirect.com/science/article/pii/S1687404813000072 https://doaj.org/toc/1687-4048
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Numerical analysis of negative skin friction on piles in soft clay

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