FINITE ELEMENT ANALYSIS OF THE EFFECTS OF INSTALLATION ON PILE LOAD-SETTLEMENT BEHAVIOUR

A finite element analysis for an axially loaded pile has been developed in which the pile and soil are analyzed as separate bodies and equilibrium and displacement compatibility at the pile-soil interface is then imposed to obtain a solution for the settlement of the pile. This analysis has been used to investigate the effects of installation of a pile on its load-settlement behaviour. Installation of the pile has been simulated by introducing a zone of disturbed soil around the pile, having different strength and deformation properties from the undisturbed soil. The theoretical results indicate that the load- settlement behaviour of the pile is influenced by the nature and extent of the disturbed zone, but to a lesser extent than the ultimate load of the file which depends almost entirely on the strength properties of the disturbed zone. For practical predictions of pile settlements, it appears adequate to use the theoretical solutions for a pile in a homogeneous soil with an equivalent constant Young's modulus. However for detailed investigation of soil settlement distribution around a pile, it is essential to take account of the non-homogeneous nature of the soil arising from pile installation. Measured distributions of soil settlement around a pile in London clay are consistent with those predicted from the finite element analysis. /TRRL/

  • Corporate Authors:

    University of Sydney

    School of Civil Engineering, Parramatta Road
    Sydney, New South Wales  Australia  2006
  • Authors:
    • Balaam, H P
    • POULOS, H G
    • BOOKER, J R
  • Publication Date: 1974-6

Media Info

  • Features: Figures; References;
  • Pagination: 21 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00096664
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: R246 Res. Rpt.
  • Files: ITRD, TRIS
  • Created Date: Aug 27 1975 12:00AM