A field trial of a reusable, hollow, cast-in-situ pile

Article English OPEN
McNamara, A. M. ; Suckling, T. ; McKinley, B. ; Stallebrass, S. E. (2014)

This paper describes the concept and field testing of a hollow, cast-in-situ, rotary bored pile foundation 1200 mm diameter and 30 m deep. The aim of the foundation is to allow large-diameter piles to be constructed using less concrete than in an equivalent conventional solid pile, and with a view to allowing reuse at a later date. Reuse is made possible because the hollow core of the pile allows access for inspection after demolition of an existing structure. The new piles may also allow modification to enhance load capacity by augering through the base and extending their length. In addition, the piles are better suited than conventional piles for use as ‘energy piles' to allow environmentally friendly heating and cooling. The geotechnical performance of the hollow test pile was comparable with that of a conventional solid pile constructed during the same trial. Details of construction are given, including lessons learned.
  • References (11)
    11 references, page 1 of 2

    Begaj L, and McNamara AM, 2011. Model testing for pile foundation reuse, International Journal of Physical Modelling in Geotechnics, Volume 11, Issue 4, 01 December, pages 166 -177.

    Butcher AP, Powell JJM and Skinner HD, 2006. Reuse of foundations for urban sites, a best practice handbook, Building Research Establishment, BRE Press.

    Clear CA and Harrison TA, 1985. Concrete pressure on formwork, Construction Industry Research and Information Association, Report 108.

    Institution of Civil Engineers (Great Britain). 2007. ICE specification for piling and embedded retaining walls. London, Thomas Telford.

    Konig, D and Loreck, C, 2010. Fresh concrete pressure induced during concreting a diaphragm wall Proc Int. Conf. Physical modelling in geotechnics, 2010, pp463-468

    McNamara, AM, Stallebrass, SE and Taylor, RN, 2012. A method of constructing a pile, European Patent No 2084331 B1

    Powell, J.J.M. & Butcher, A.P., (2003). Capacity of driven piles with time - implications for re-use. Proc. XIII ECSMGE, Vaniček et al. (eds). ČGtS, Prague, ISBN 80-86769-01-1, (Vol. 2).

    Powell, J. J. M. and Skinner, H. D. (2006). Capacity changes of bored piles with time. Butcher et al (eds) Reuse of Foundations for Urban Sites: Proceedings of International Conference, 2006. pp 237-248.

    Randolph MF and Wroth CP, 1982. Recent developments in understanding the axial capacity of piles in clay. Ground Engineering, Volume 15, No. 7, October 1982.

    Stroud M, 1974. The standard penetration test in insensitive clays and soft rocks. Proceedings of European Symposium on Penetration Testing (ESOPT I), pp367 - 375)

  • Metrics
    0
    views in OpenAIRE
    0
    views in local repository
    391
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    City Research Online - IRUS-UK 0 391
Share - Bookmark