Understanding CHD pile performance in granular soils

John R. Jeffrey, Tina Schwamb, Michael J. Brown, Jon Ball

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The paper introduces a piling system developed by Roger Bullivant Ltd 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 granular material 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. Both model test results and field data analysis work are described which determine refinements for the design of the piles. 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.
Original languageEnglish
Title of host publication11th International Conference on Piling and Deep Foundations
PublisherDeep Foundations Institute
Pages130-138
Number of pages9
Publication statusPublished - 2010

Fingerprint Dive into the research topics of 'Understanding CHD pile performance in granular soils'. Together they form a unique fingerprint.

  • Research Output

    • 2 Article
    • 1 Other chapter contribution
    • 1 Comment/debate

    Discussion: CHD pile performance: Part I – Physical modelling

    Jeffrey, J. R., Brown, M. J., Knappett, J. A., Ball, J. D., Caucis, K., Cui, W., Zheng, X. D., Zhang, S. M. & Zhang, Q. Q., 1 Apr 2017, In : Proceedings of the Institution of Civil Engineers: Geotechnical Engineering. 170, 2, p. 186-187 2 p., 1600216.

    Research output: Contribution to journalComment/debate

    Open Access
    File
    1 Citation (Scopus)
    148 Downloads (Pure)

    CHD pile performance, Part I: Physical modelling

    Jeffrey, J. R., Brown, M. J., Knappett, J. A., Ball, J. D. & Caucis, K., 14 Sep 2016, In : Proceedings of the Institution of Civil Engineers: Geotechnical Engineering. 169, 5, p. 421-435 15 p.

    Research output: Contribution to journalArticle

    Open Access
    File
  • 12 Citations (Scopus)
    514 Downloads (Pure)

    CHD pile performance, part II: Numerical modelling

    Knappett, J. A., Caucis, K., Brown, M. J., Jeffrey, J. R. & Ball, J. D., Oct 2016, In : Proceedings of the Institution of Civil Engineers: Geotechnical Engineering. 169, 5, p. 436-454 19 p.

    Research output: Contribution to journalArticle

    Open Access
    File
  • 10 Citations (Scopus)
    206 Downloads (Pure)

    Student Theses

    Investigating the performance of continuous helical displacement piles

    Author: Jeffrey, J., 2012

    Supervisor: Brown, M. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy

    File

    Cite this

    Jeffrey, J. R., Schwamb, T., Brown, M. J., & Ball, J. (2010). Understanding CHD pile performance in granular soils. In 11th International Conference on Piling and Deep Foundations (pp. 130-138). Deep Foundations Institute.