Bearing capacity of CHD piles compared to traditional piling techniques in sand

J. R. Jeffrey; M. J. Brown; T. Schwamb; J. Ball

doi:10.1201/b10554-128

Bearing capacity of CHD piles compared to traditional piling techniques in sand

J. R. Jeffrey, M. J. Brown, T. Schwamb, J. Ball

Research output: Chapter in Book/Report/Conference proceeding › Other chapter contribution

Abstract

The paper introduces a piling system known as the Continuous Helical Displacement (CHD) pile. The pile has a number of advantages over current piling methods during installation, particularly when installed on brownfield sites. The method has been developed to achieve greater performance when installed in coarse grained soils when compared to conventional piling methods. In order to determine the origins of the improved performance, research is being carried out at the University of Dundee on the CHD piling technique. Model testing was used to compare the performance of simulated CHD, driven and auger bored piles. This work showed that the CHD has enhanced performance compared to bored piles and is more comparable to driven pile behaviour. The bearing capacity Nq factors were investigated and found to increase as the soil density decreases. This behaviour suggests the CHD pile improves the soil performance when installed in loose material

Original language	English
Title of host publication	Physical Modelling in Geotechnics
Subtitle of host publication	proceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010)
Editors	Linda Seward
Place of Publication	London
Publisher	CRC Press
Pages	781-786
Number of pages	6
Volume	2
ISBN (Electronic)	978-1-4665-5742-0
ISBN (Print)	978-0-415-59288-8
DOIs	https://doi.org/10.1201/b10554-128
Publication status	Published - 2010
Event	7th International Conference on Physical Modelling in Geotechnics - Zurich, Switzerland Duration: 28 Jun 2010 → 1 Jul 2010 http://www.icpmg2010.ch/finalprogramme

Conference

Conference	7th International Conference on Physical Modelling in Geotechnics
Abbreviated title	ICPMG 2010
Country/Territory	Switzerland
City	Zurich
Period	28/06/10 → 1/07/10
Internet address	http://www.icpmg2010.ch/finalprogramme

Access to Document

10.1201/b10554-128

1 Conference contribution

Understanding CHD pile performance in granular soils
Jeffrey, J. R., Schwamb, T., Brown, M. J. & Ball, J., 2010, 11th International Conference on Piling and Deep Foundations. Deep Foundations Institute, p. 130-138 9 p.
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Participation in conference

7th International Conference on Physical Modelling in Geotechnics
Brown, M. J. (Invited speaker)
28 Jun 2010
Activity: Participating in or organising an event types › Participation in conference

Cite this

@inbook{4d154a06637e4342aa8a3f1af688aa60,

title = "Bearing capacity of CHD piles compared to traditional piling techniques in sand",

abstract = "The paper introduces a piling system known as the Continuous Helical Displacement (CHD) pile. The pile has a number of advantages over current piling methods during installation, particularly when installed on brownfield sites. The method has been developed to achieve greater performance when installed in coarse grained soils when compared to conventional piling methods. In order to determine the origins of the improved performance, research is being carried out at the University of Dundee on the CHD piling technique. Model testing was used to compare the performance of simulated CHD, driven and auger bored piles. This work showed that the CHD has enhanced performance compared to bored piles and is more comparable to driven pile behaviour. The bearing capacity Nq factors were investigated and found to increase as the soil density decreases. This behaviour suggests the CHD pile improves the soil performance when installed in loose material",

author = "Jeffrey, \{J. R.\} and Brown, \{M. J.\} and T. Schwamb and J. Ball",

year = "2010",

doi = "10.1201/b10554-128",

language = "English",

isbn = "978-0-415-59288-8",

volume = "2",

pages = "781--786",

editor = "Linda Seward",

booktitle = "Physical Modelling in Geotechnics",

publisher = "CRC Press",

note = "7th International Conference on Physical Modelling in Geotechnics, ICPMG 2010 ; Conference date: 28-06-2010 Through 01-07-2010",

url = "http://www.icpmg2010.ch/finalprogramme",

}

Jeffrey, JR, Brown, MJ, Schwamb, T & Ball, J 2010, Bearing capacity of CHD piles compared to traditional piling techniques in sand. in L Seward (ed.), Physical Modelling in Geotechnics: proceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010). vol. 2, CRC Press, London, pp. 781-786, 7th International Conference on Physical Modelling in Geotechnics, Zurich, Switzerland, 28/06/10. https://doi.org/10.1201/b10554-128

Bearing capacity of CHD piles compared to traditional piling techniques in sand. / Jeffrey, J. R.; Brown, M. J.; Schwamb, T. et al.
Physical Modelling in Geotechnics: proceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010). ed. / Linda Seward. Vol. 2 London: CRC Press, 2010. p. 781-786.

Research output: Chapter in Book/Report/Conference proceeding › Other chapter contribution

TY - CHAP

T1 - Bearing capacity of CHD piles compared to traditional piling techniques in sand

AU - Jeffrey, J. R.

AU - Brown, M. J.

AU - Schwamb, T.

AU - Ball, J.

PY - 2010

Y1 - 2010

N2 - The paper introduces a piling system known as the Continuous Helical Displacement (CHD) pile. The pile has a number of advantages over current piling methods during installation, particularly when installed on brownfield sites. The method has been developed to achieve greater performance when installed in coarse grained soils when compared to conventional piling methods. In order to determine the origins of the improved performance, research is being carried out at the University of Dundee on the CHD piling technique. Model testing was used to compare the performance of simulated CHD, driven and auger bored piles. This work showed that the CHD has enhanced performance compared to bored piles and is more comparable to driven pile behaviour. The bearing capacity Nq factors were investigated and found to increase as the soil density decreases. This behaviour suggests the CHD pile improves the soil performance when installed in loose material

AB - The paper introduces a piling system known as the Continuous Helical Displacement (CHD) pile. The pile has a number of advantages over current piling methods during installation, particularly when installed on brownfield sites. The method has been developed to achieve greater performance when installed in coarse grained soils when compared to conventional piling methods. In order to determine the origins of the improved performance, research is being carried out at the University of Dundee on the CHD piling technique. Model testing was used to compare the performance of simulated CHD, driven and auger bored piles. This work showed that the CHD has enhanced performance compared to bored piles and is more comparable to driven pile behaviour. The bearing capacity Nq factors were investigated and found to increase as the soil density decreases. This behaviour suggests the CHD pile improves the soil performance when installed in loose material

U2 - 10.1201/b10554-128

DO - 10.1201/b10554-128

M3 - Other chapter contribution

SN - 978-0-415-59288-8

VL - 2

SP - 781

EP - 786

BT - Physical Modelling in Geotechnics

A2 - Seward, Linda

PB - CRC Press

CY - London

T2 - 7th International Conference on Physical Modelling in Geotechnics

Y2 - 28 June 2010 through 1 July 2010

ER -

Bearing capacity of CHD piles compared to traditional piling techniques in sand

Abstract

Conference

Access to Document

Fingerprint

Research output

Understanding CHD pile performance in granular soils

Activities

7th International Conference on Physical Modelling in Geotechnics

Cite this