AI Summary & Key Takeaways
AI InsightThe reason for this is due to some limitations of the elastic-plastic model andprediction methods.
📌 3 Key Takeaways
Abstract
In the present study, the bearing capacities of coarse graded soils beneath shallow strip foundations at thesurface (Df=0) were calculated by means of analytical and numerical methods. First, all necessarygeotechnical properties of the soil were achieved at seven different relative density values of the soil interms of correlations between friction angle (ϕ) and dry density (γd). Second, 56 bearing capacity analysesof shallow strip foundation systems at surface were conducted by changing the soil parameters and thewidth of the foundations with analytical and finite element methods (FEM). The Mohr-Coulomb, elasticplastic, model was chosen for this research. Although explicit analytic solutions were obtained withoutany difficulty, FEM provided only the load-deformation response at the base of the footing from themodels. Because of that, some prediction methods were used to evaluate and find the bearing capacity ofthe soils beneath the foundation from the load-deformation responses. The results of analytic andnumerical analyses of the shallow strip foundation laying on loose soil models gave very similar values.Although, very similar bearing capacity values of the foundations laying on dense soil models werecalculated using analytical methods, the results of numerical methods were very divergent and scattered atthe same conditions. The reason for this is due to some limitations of the elastic-plastic model andprediction methods.