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https://nap.nationalacademies.org/catalog/27432/critical-issues-in-transportation-for-2024-and-beyond

A MAPPING FINITE ELEMENT METHOD FOR THE ANALYSIS OF LATERALLY LOADED SINGLE PILES

A simple mapping finite element method is presented for the analysis of laterally loaded single piles. In this both pile and soil are considered as integral parts of the same solid continuum but with different properties; the cylindrical-polar coordinate transformation is used to map the physical pile-soil domain into a mapped domain which has a simpler shape. The prescribed boundary conditions and applied loads are also transformed appropriately. The problem is then solved in the mapped domain with finite elements of the mapped space. Typical results, presented for homogeneous and nonhomogeneous soils, show that although results due to the proposed method agree reasonably well with those due to conventional methods in which assumptions have to be made regarding stress distribution at the pile-soil interface, there are discrepancies nevertheless which may be significant. Such assumptions are dispensed with in the proposed method and, to this extent alone, it arguably accords more with the actual physics of the problem than do the conventional methods. It is also pointed out how this simple and accurate method can be extended, without difficulty, to problems of laterally loaded piles embedded in soils that may be linear, nonlinear, homogeneous, nonhomogeneous or layered in any admissible combination. (a) (TRRL)

  • Availability:
  • Corporate Authors:

    Elsevier Science Publishers

    Crown House, Linton Road
    Barking, Essex IG11 8JU,   England 
  • Authors:
    • NATH, B
  • Publication Date: 1989

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00499373
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1990 12:00AM