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 proceedingOther 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 languageEnglish
    Title of host publicationPhysical Modelling in Geotechnics
    Subtitle of host publicationproceedings of the 7th International Conference on Physical Modelling in Geotechnics (ICPMG 2010)
    EditorsLinda Seward
    Place of PublicationLondon
    PublisherCRC Press
    Pages781-786
    Number of pages6
    Volume2
    ISBN (Electronic)978-1-4665-5742-0
    ISBN (Print)978-0-415-59288-8
    DOIs
    Publication statusPublished - 2010
    Event7th International Conference on Physical Modelling in Geotechnics - Zurich, Switzerland
    Duration: 28 Jun 20101 Jul 2010
    http://www.icpmg2010.ch/finalprogramme

    Conference

    Conference7th International Conference on Physical Modelling in Geotechnics
    Abbreviated titleICPMG 2010
    CountrySwitzerland
    CityZurich
    Period28/06/101/07/10
    Internet address

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  • Research Output

    • 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 proceedingConference contribution

  • Activities

    • 1 Participation in conference

    7th International Conference on Physical Modelling in Geotechnics

    Michael John Brown (Invited speaker)

    28 Jun 2010

    Activity: Participating in or organising an event typesParticipation in conference

    Cite this

    Jeffrey, J. R., Brown, M. J., 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, pp. 781-786). CRC Press. https://doi.org/10.1201/b10554-128