Response and Analysis of a Large Diameter Drilled Shaft Subjected to Lateral Loading

Tong Qiu, Patrick J. Fox, Kerop Janoyan, Jonathan P. Stewart, John W. Wallace

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Numerical analyses are presented for the response of a 2 m diameter drilled shaft with flagpole configuration subjected to lateral loading. The analyses were conducted using three software programs: LPILE (subgrade reaction model), SWM (strain wedge model), and ABAQUS (3-D finite element model). The analyses consider nonlinear behavior of the reinforced concrete shaft, contact-slip-gap at the soil-shaft interface, and elastic-plastic properties of the soil. Numerical results are compared with measurements from a full-scale field test for the shaft and include lateral displacement at the top of the shaft, subgrade reaction (p-y) curves at three depths, and distributions of bending moment and shear force along the shaft.

Original languageEnglish (US)
Pages (from-to)613-624
Number of pages12
JournalGeotechnical Special Publication
Issue number124
StatePublished - 2004
EventGeoSupport 2004 - Drilled Shafts, Micropiling, Deep Mixing, Remedial Methods, and Specialty Foundation Systems, Proceedings of Sessions of the Geosupport Conference: Innovation and Cooperation in the Geoindustry - Orlando, FL, United States
Duration: Jan 29 2004Jan 31 2004

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


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