AN EXPERIMENTAL STUDY ON SOIL STRUCTURE INTERACTION FOR SHALLOW FOUNDATION
Abstract
The topic of soil-structure interaction can be considered midway between the geotechnical and the structural engineering. Although applications concerning the whole soil-foundation structure system are present in the literature, a practical procedure for professional engineers has not been defined yet. With the aim of making a simplified dynamic soil-structure interaction, instead of a complete costly numerical modeling which includes the soil and the superstructure, it is possible to model the soil by springs which have equivalent characteristics (Winkler’s springs approach). In this study, different types of soil such as quarry dust, red soil, black soil and moorum have been collected. The static and dynamic properties of soil have been studied. By the laboratory tests, the engineering properties of the above soils were determined. Furthermore the Standard penetration test have been done in Agraharam, Erode (TN). By the bore log report the properties of soil have been determined present in that site. In order to know the settlement of the selected site, the plate load test (PLT) was carried out. A control beam and the column footing were casted using fiber reinforced concrete. A model has been developed with the size of 1.6m×0.6m×0.8min the laboratory with four different soil layers of 0.2m height. Over this model, the spring setup has been placed. Following that the structural elements were placed over the spring to determine the settlement of the soil layers by the application of load. These settlements were less than the actual settlement of the soil. This indicates that the Winkler approach reduced the settlement. From this study, it was observed that this approach suited for our selected site.
Author
D.Siva kumar, Dr.E.Ravi, C.Nandhini
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