Sekar, Preethi
(2016)
Settlement of Two Layered Soil System due to Rectangular Footing.
Masters thesis, Indian Institute of Technology Hyderabad.
Abstract
Settlement of a semi- infinite, homogenous soil stratum due to various loading types and shapes is readily available in literature. However, ground profile is seldom homogenous and typically consists of layered soils. Authers have often come across ground profiles consisting of layered soils underlain by a rock stratum. This study deals with the immediate settlement of a two- layered soil system due to loading on a rectangular area. Elastic analysis is performed using finite elements for a wide range of geometric and soil properties. The settlement of a shallow footing depends on various other factors like shape of the footing, depth of embedment and rigidity of the footing apart from the load on the footing. Influence factors are introduced to include the effects of the factors influencing factors. Design engineers can use the settlement influence factors proposed in the form of charts to estimate the settlement at the centre of the loading. In addition, the settlement profiles in both x and y directions are also presented. The results from the
study showed good agreement with the validation studies done by various researchers as discussed in each chapter.
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