Determination of pile base resistance in sands

J. H. Lee, R. Salgado

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

Advances in the design of axially loaded piles are desirable because significant cost savings may result. Well-designed piles settle by amounts that are well tolerated by the superstructure and induce strains around the pile base that are far removed from failure. To investigate the development of base resistance for a given soil condition and increasing settlements, piles embedded in sand are modeled using the finite-element method with a nonlinear elastic-plastic model. Based on the load-settlement response obtained from the finite-element analysis and cone penetration resistance obtained from cavity expansion and stress rotation analyses, values of normalized base resistance, defined as base resistance divided by cone penetration resistance, are obtained. The relationship between base resistance and cone resistance is useful in the design of deep foundation using cone penetration test results. The effect of the initial coefficient of earth pressure at rest K0 on normalized base resistance values is also investigated. Several case histories, including both nondisplacement and displacement piles, are used for comparison with the theoretical results.

Original languageEnglish
Pages (from-to)673-683
Number of pages11
JournalJournal of Geotechnical and Geoenvironmental Engineering
Volume125
Issue number8
DOIs
Publication statusPublished - 1999 Jan 1

Fingerprint

Piles
pile
Sand
Cones
sand
penetration
Finite element method
cone penetration test
earth pressure
finite element method
savings
cavity
plastic
Earth (planet)
Plastics
Soils
history
cost
Costs

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Environmental Science(all)

Cite this

@article{f05761545eb34629842cc8418d41c7f9,
title = "Determination of pile base resistance in sands",
abstract = "Advances in the design of axially loaded piles are desirable because significant cost savings may result. Well-designed piles settle by amounts that are well tolerated by the superstructure and induce strains around the pile base that are far removed from failure. To investigate the development of base resistance for a given soil condition and increasing settlements, piles embedded in sand are modeled using the finite-element method with a nonlinear elastic-plastic model. Based on the load-settlement response obtained from the finite-element analysis and cone penetration resistance obtained from cavity expansion and stress rotation analyses, values of normalized base resistance, defined as base resistance divided by cone penetration resistance, are obtained. The relationship between base resistance and cone resistance is useful in the design of deep foundation using cone penetration test results. The effect of the initial coefficient of earth pressure at rest K0 on normalized base resistance values is also investigated. Several case histories, including both nondisplacement and displacement piles, are used for comparison with the theoretical results.",
author = "Lee, {J. H.} and R. Salgado",
year = "1999",
month = "1",
day = "1",
doi = "10.1061/(ASCE)1090-0241(1999)125:8(673)",
language = "English",
volume = "125",
pages = "673--683",
journal = "Journal of Geotechnical and Geoenvironmental Engineering - ASCE",
issn = "1090-0241",
publisher = "American Society of Civil Engineers (ASCE)",
number = "8",

}

Determination of pile base resistance in sands. / Lee, J. H.; Salgado, R.

In: Journal of Geotechnical and Geoenvironmental Engineering, Vol. 125, No. 8, 01.01.1999, p. 673-683.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Determination of pile base resistance in sands

AU - Lee, J. H.

AU - Salgado, R.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Advances in the design of axially loaded piles are desirable because significant cost savings may result. Well-designed piles settle by amounts that are well tolerated by the superstructure and induce strains around the pile base that are far removed from failure. To investigate the development of base resistance for a given soil condition and increasing settlements, piles embedded in sand are modeled using the finite-element method with a nonlinear elastic-plastic model. Based on the load-settlement response obtained from the finite-element analysis and cone penetration resistance obtained from cavity expansion and stress rotation analyses, values of normalized base resistance, defined as base resistance divided by cone penetration resistance, are obtained. The relationship between base resistance and cone resistance is useful in the design of deep foundation using cone penetration test results. The effect of the initial coefficient of earth pressure at rest K0 on normalized base resistance values is also investigated. Several case histories, including both nondisplacement and displacement piles, are used for comparison with the theoretical results.

AB - Advances in the design of axially loaded piles are desirable because significant cost savings may result. Well-designed piles settle by amounts that are well tolerated by the superstructure and induce strains around the pile base that are far removed from failure. To investigate the development of base resistance for a given soil condition and increasing settlements, piles embedded in sand are modeled using the finite-element method with a nonlinear elastic-plastic model. Based on the load-settlement response obtained from the finite-element analysis and cone penetration resistance obtained from cavity expansion and stress rotation analyses, values of normalized base resistance, defined as base resistance divided by cone penetration resistance, are obtained. The relationship between base resistance and cone resistance is useful in the design of deep foundation using cone penetration test results. The effect of the initial coefficient of earth pressure at rest K0 on normalized base resistance values is also investigated. Several case histories, including both nondisplacement and displacement piles, are used for comparison with the theoretical results.

UR - http://www.scopus.com/inward/record.url?scp=0032851354&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032851354&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)1090-0241(1999)125:8(673)

DO - 10.1061/(ASCE)1090-0241(1999)125:8(673)

M3 - Article

AN - SCOPUS:0032851354

VL - 125

SP - 673

EP - 683

JO - Journal of Geotechnical and Geoenvironmental Engineering - ASCE

JF - Journal of Geotechnical and Geoenvironmental Engineering - ASCE

SN - 1090-0241

IS - 8

ER -