Application of CPT cone resistance for footing bearing capacity estimation

Jun Hwan Lee, Rodrigo Salgado

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, application of the CPT cone resistance (qc) for footing bearing capacity estimation is examined. The analysis focuses on axially loaded circular footings bearing on sand. The approach proposed in this study can reduce the uncertainties associated with the bearing capacity equation, as no estimation of or selection of an equation for Nγ is necessary. Instead, normalized limit unit bearing capacities q bL/qc are calculated from non-linear finite element and cone penetration resistance analyses for various soil and footing conditions. Based on results in this study, a method for estimating qbL directly from the CPT cone resistance (qc) is proposed. Effects of the relative density (DR), the lateral earth pressure ratio (K 0) and the footing size are also addressed. There is a size effect on the values of qbL/qc. The size effect increases as the footing diameter B increases. Copyright ASCE 2006.

Original languageEnglish
Title of host publicationSite and Geomaterial Characterization - Proceedings of the GeoShanghai Conference
Pages230-235
Number of pages6
Edition149
DOIs
Publication statusPublished - 2006 Dec 18
EventSite and Geomaterial Characterization - Shanghai, China
Duration: 2006 Jun 62006 Jun 8

Publication series

NameGeotechnical Special Publication
Number149
ISSN (Print)0895-0563

Other

OtherSite and Geomaterial Characterization
CountryChina
CityShanghai
Period06/6/606/6/8

All Science Journal Classification (ASJC) codes

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

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  • Cite this

    Lee, J. H., & Salgado, R. (2006). Application of CPT cone resistance for footing bearing capacity estimation. In Site and Geomaterial Characterization - Proceedings of the GeoShanghai Conference (149 ed., pp. 230-235). (Geotechnical Special Publication; No. 149). https://doi.org/10.1061/40861(193)29