Rectangular Footing on Nonhomogeneous Elastic Half Space

by John P. Dempsey, Clarkson Univ, United States,
Hui Li, Clarkson Univ, United States,

Document Type: Proceeding Paper

Part of: Foundation Engineering: Current Principles and Practices


The problem of a rectangular footing or a strip footing on a nonhomogeneous elastic half space is studied in this paper. The medium is assumed to be isotropic with a variable shear modulus G(z) = G0 + mz and a constant Poisson's ratio equal to 1/3. An important feature of this model is that either the Winkler foundation or the elastic homogeneous half space can be made special cases by letting G0 or m equal zero, respectively. In order to investigate the necessary conditions for a footing to be considered rigid, both rigid and flexible footings have been studied. Numerical results are presented to illustrate the effects of various parameters over the contact pressure and deflection.

Subject Headings: Footings | Homogeneity | Elastic analysis | Half space | Shear modulus | Elastic foundations | Soil settlement | Isotropy

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