On the Axial Behavior of Drilled Foundations

In this chapter, four representative types of drilled foundations (drilled shafts, augered cast-in-place piles, pressure-injected footings, and micropiles) are examined from the standpoint of axial capacity evaluation, generalized behavior, and normalized load-displacement response. The author shows how the capacities can be computed rationally, taking into account the particular characteristics of each foundation type. The author notes that the results agree well with the interpreted failure load from field load tests. The interpreted failure load also is linked consistently and simply to the elastic limit and the conventional slope tangent methods for interpreting compression and uplift load test results. The displacements exhibit consistent patterns of behavior in compression and uplift, at both the interpreted failure load and elastic limit. The author concludes that these results will be useful for better understanding axial foundation behavior over a range of drilled foundation types.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 34-51
  • Monograph Title: GeoSupport 2004. Drilled Shafts, Micropiling, Deep Mixing, Remedial Methods, and Specialty Foundation Systems

Subject/Index Terms

Filing Info

  • Accession Number: 01000146
  • Record Type: Publication
  • ISBN: 0784407134
  • Files: TRIS
  • Created Date: May 2 2005 3:45PM