Numerical and Centrifuge Modelling in Soil-Structure Interaction V.S. Chandrasekaran* Introduction I n recent years numerical modelling of soil-structure interaction problems has assumed great significance not only due to the accuracy of the numerical procedures employed and easy availability of fast computers but also due to refinements achieved in characterising the strength deformation properties of the soil. Though the properties are usually evaluated under simplified experimental conditions of plane strain. axi-symmetry, simple shear or from field tests such as standard penetration test, cone penetration test or pressure meter test, they have been used extensively in solving variety of complex boundary value problems in soil-structure interaction using powerful numerical techniques. However the efficacy of the underlying methodology needs to be validated so that the procedure could be used with a greater level of confidence in practical situations. The desirable way of achieving this would be by comparing the r.esults of such analyses with field measurements of prototype behaviour. However opportunities for such comparisons are invariably scarce. The prediction of the performance of the structure that is to be newly built will have to he made based on a study of physical models or numerical 111odels or both. It is in this context that studies using physical models become extremely useful. The last two decades have seen significant advances in the physical modelling of geotechnical structures usmg centrifuges. :;: Dcpartn1ent of Civil Engineering Indian Institute of Technology Ron1hay. Powai. Mumbai - 400076
Numerical and Centrifuge Modelling in Soil-Structure Interaction
Jun 14, 2023
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