EXPERIMENTAL INVESTIGATION OF DIFFERENT SHAPED ISOLATED FOOTINGS UNDER STATIC LOAD AND IMPACT LOADING ON SANDY SOIL AND BLACK COTTON SOIL
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 5, Issue 9
Abstract
Any Civil Engineering Structure must rest on a strong foundation or as per the strength criteria. Bearing capacity and settlement are the two major criteria for designing of foundation. Also it is not always subjected to monotonic loading but it may be subjected to impact loading. The examples are lifts, bridges foundation, machine foundation, offshore structure, wind waves etc. In this dissertation work, with the experimental investigations work an attempt has been made to study the behavior and suitability of various shaped footing specimens which may be a choice for laying of foundation. For this purpose the area of footing specimens has been kept same as 400 cm2 for all shapes of footings and thereafter the dimension are fixed accordingly. As a consideration for knowing of effect of settlement the dissertation work is studied under black cotton soil and sandy soil as two different strata. Also, in this dissertation work, the loading on the footing has been differentiated as static and Impact loading so that settlement tests were conducted on all specimens and load intensity–settlement curves are to be plotted. It is also required to verify the suitability of the shape as per loading on different types of soil. It is concluded after studying the load intensity settlement behavior that hexagonal footing shows least settlement while square and rectangular footing shows maximum settlement at same loading intensity. Experimentally it is found that hexagonal footing shows better performance while other footing shows considerable behavior.The study is carried out using two types of soil namely, sandy soil and black cotton soil as strata which suggest that penetration is more for black cotton soil. In this test study the density and moisture content of the soil were kept same as existing in the field. Load intensity –settlement curves are compared with standard behaviour and studied for further conclusions and scope.
Authors and Affiliations
Mr Arpit Agrawal
Keywords
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