Advanced bearing capacity computation of a footing on sand using a kinematic hardening elastoplastic model

K. Nesnas, P. Woodward

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

    4 Citations (Scopus)

    Abstract

    The pioneering work by De Beer gave evidence that the bearing capacity factor N? of shallow foundations on sand decreases with increasing foundation width. This size effect is mainly attributed to the fact that the shear strength in the sand decreases with increasing isotropic stress level. A non linear finite element program which incorporates an advanced kinematic hardening-softening model is used to study this size effect for strip and circular footings. The constitutive model is calibrated for a given sand. Results of the finite element program are compared with experimental results obtained from literature on shallow foundations. The size effect on the shape factor s(?) and the allowable bearing pressure is also investigated. A criterion which governs the safety of a foundation on Nevada sand in the range of widths from 1m to 6m is presented with a shape factor for the allowable bearing pressure.

    Original languageEnglish
    Title of host publicationNumerical models in geomechanics. Proceedings of the 7th international symposium, Graz, September 1999.
    EditorsG. N. Pande, S. Pietruszczak, H. F. Schweiger
    Pages463-468
    Number of pages6
    Publication statusPublished - 1999
    Event2nd European Conference on Neutron Scattering - Budapest, Hung
    Duration: 1 Sep 19994 Sep 1999

    Conference

    Conference2nd European Conference on Neutron Scattering
    Abbreviated titleECNS '99
    CityBudapest, Hung
    Period1/09/994/09/99

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  • Cite this

    Nesnas, K., & Woodward, P. (1999). Advanced bearing capacity computation of a footing on sand using a kinematic hardening elastoplastic model. In G. N. Pande, S. Pietruszczak, & H. F. Schweiger (Eds.), Numerical models in geomechanics. Proceedings of the 7th international symposium, Graz, September 1999. (pp. 463-468)