The influence of loading rate on pile behaviour in clay

Michael Brown, Adrian F. L. Hyde, William Anderson

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

Abstract

The Statnamic test is a recently developed method of assessing the load carrying characteristics of a foundation pile. The rate of load application during the test lies between that for the static and dynamic tests. Current analysis methods offer excellent correlation between static and Statnamic tests for coarsegrained soils. However, over-predictions of capacity may be obtained for fine-grained soils. Present analyses of the Statnamic test are based upon field studies that are influenced by soil variation. Thus a clay calibration chamber is being used to produce repeatable instrumented beds of clay. An instrumented model pile placed in the bed can be loaded at varying rates by a computer controlled servo-hydraulic actuator. Results from the modeling will be used to improve analysis methods and will also govern the design of a full-scale study. Initial results suggest the rate effect associated with increased pile deformation rates adequately fits a power law relationship.
Original languageEnglish
Title of host publicationProceedings of the 5th International Conference On Physical Modelling in Geotechnics ICPMG’02
EditorsRyan Philips, P Guo, R Popescu
PublisherCRC Press/Balkema
Pages667-672
Number of pages6
ISBN (Print)9789058093891
Publication statusPublished - Jul 2002

Keywords

  • Statnamic load testing

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  • Research Output

    Comparison of Rapid Load Test Analysis Techniques in Clay Soils

    Brown, M. J. & Powell, J. J. M., Jan 2013, In : Journal of Geotechnical and Geoenvironmental Engineering. 139, 1, p. 152-161 10 p.

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Comparison of rapid load pile testing of driven and CFA piles installed in high OCR clay

    Brown, M. J. & Powell, J. J. M., Dec 2012, In : Soils and Foundations. 52, 6, p. 1033-1042 10 p.

    Research output: Contribution to journalArticle

    Open Access
    File
  • Rapid load testing on piles: interpretation guidelines

    Holscher, P., Brassinga, H., Brown, M., Middendorp, P., Profittlich, M. & van Tol, F., 14 Oct 2011, Leiden: CRC Press. 108 p. (CUR guidelines; no. 230)

    Research output: Book/ReportBook

  • Cite this

    Brown, M., Hyde, A. F. L., & Anderson, W. (2002). The influence of loading rate on pile behaviour in clay. In R. Philips, P. Guo, & R. Popescu (Eds.), Proceedings of the 5th International Conference On Physical Modelling in Geotechnics ICPMG’02 (pp. 667-672). CRC Press/Balkema.