EFFECT OF SHAPE AND SIZE ON LOAD CARRYING CAPACITY OF FOUNDATION: A CASE STUDY

Civil Engg

Soil is a universally occurring natural element formed due to continuous denudation of different sorts of rocks and minerals. Each type of soil inherits a lot of similar characteristics from its parent rock like chemical composition, physical appearance, color, texture etc. In spite of these, there are yet a lot of other important characteristics that significantly comes into play in the construction sector and civil engineering. The bearing capacity is the most important soil property which governs the design of foundation soft clay strata and is often unable to bear the load transferred from the super structure to the foundation. Bearing capacity and settlement are the two important parameters in the field of geotechnical engineering as bearing capacity is affected by various factors like dimensions of footing, shape and type of loading etc. This report discusses the influence of size and shape on the bearing capacity of footing for G+3 commercial building. The analysis is a case study from India which involves initially finding index and physical properties of soil collected from the residential area of Nasik city. The study performed gives a detail study on the variation of contact pressure and load bearing capacity of underlying soil with respect to two types of footing (square and circular). Later the analysis has been performed for the varying width of footing. The report also states the most economical size and shape that can be adopted for the same site. The complete analysis is performed using software module ‘GEO-5’.

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