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New Hybrid Subgrade Model for Soil-Structure Interaction Analysis: Foundation and Geosynthetics Applications
The Modified Kerr-Reissner Model is a new advanced subgrade model developed using a unique hybrid derivational approach. It synergistically combines the best features but none of the flaws of the traditional mechanical and elastic-continuum approaches when used alone for developing subgrade models. The result is a model that is straightforward to implement in commercially available structural analysis software and has parameters defining its mathematical behavior that can be evaluated logically on a project-specific basis using conventional geotechnical engineering methodologies. Most importantly, because this new model inherently incorporates vertical shearing (referred to as spring coupling in subgrade modeling) into its mathematical formulation it eliminates all of the well-known theoretical shortcomings as well as other uncertainties of Winkler's Hypothesis, the predominant subgrade model used to date. This new model is thus of immediate use to practitioners and researchers alike for application in a wide range of soil-structure interaction problems. Examples are given for foundation engineering as well as with planar geosynthetics used for tensile reinforcement with vertical loading.
New Hybrid Subgrade Model for Soil-Structure Interaction Analysis: Foundation and Geosynthetics Applications
The Modified Kerr-Reissner Model is a new advanced subgrade model developed using a unique hybrid derivational approach. It synergistically combines the best features but none of the flaws of the traditional mechanical and elastic-continuum approaches when used alone for developing subgrade models. The result is a model that is straightforward to implement in commercially available structural analysis software and has parameters defining its mathematical behavior that can be evaluated logically on a project-specific basis using conventional geotechnical engineering methodologies. Most importantly, because this new model inherently incorporates vertical shearing (referred to as spring coupling in subgrade modeling) into its mathematical formulation it eliminates all of the well-known theoretical shortcomings as well as other uncertainties of Winkler's Hypothesis, the predominant subgrade model used to date. This new model is thus of immediate use to practitioners and researchers alike for application in a wide range of soil-structure interaction problems. Examples are given for foundation engineering as well as with planar geosynthetics used for tensile reinforcement with vertical loading.
New Hybrid Subgrade Model for Soil-Structure Interaction Analysis: Foundation and Geosynthetics Applications
Horvath, John S. (author) / Colasanti, Regis J. (author)
Geo-Frontiers Congress 2011 ; 2011 ; Dallas, Texas, United States
Geo-Frontiers 2011 ; 4359-4368
2011-03-11
Conference paper
Electronic Resource
English
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