• Sanskruti V. Bhavsar
• Priti J. Mehta

Present research paper is an attempt to study the effect of geometrical shape of footing on load-settlement characteristics of silty sand (SM) with and without reinforcement. The standard geometrical footing shape used in present study are square, circular and rectangular keeping similar planar area. Coir geotextile, a natural geotextile manufactured out of coir fibers, has been recognized as a feasible alternative to geosynthetics for reinforcement applications, due to its longevity and excellent engineering properties. It is best suited for low-cost applications in developing countries due to its availability at low prices compared to its synthetic counterparts. For reinforced conditions, coir mats are used. This research is to understand interaction mechanism between footing surface and natural reinforcement and interaction between natural reinforcement and silty sand. A total of 18 tests are performed. A coir mat of the diameter of 4B and were placed in 3 layers at a depth u/B=0.3 and h/B=0.4. Eccentric loading is along longitudinal axis at e = 1 cm and e = 2 cm. The results indicated that in unreinforced condition, the ultimate bearing capacity is almost equal for both of the square and circular footings and higher for rectangular footing for axial loading; but with reinforcing the ultimate bearing capacity of circular footing increased compared to square footing and the bearing capacity of rectangular footing is higher than circular for central loading. For eccentric loading, rectangular footing shows better results compared to square and circular footing. In comparison to circular shape, square shape has higher bearing capacity.

bearing capacity, silty sand, geotextile, natural fibers, coir mat

"Effect of Footing Shape and Load Eccentricity on Bearing Capacity of Silty Sand Reinforced with Silty Sand", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.327-331, April-2019, Available :http://www.jetir.org/papers/JETIR1904549.pdf

"Effect of Footing Shape and Load Eccentricity on Bearing Capacity of Silty Sand Reinforced with Silty Sand", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp327-331, April-2019, Available at : http://www.jetir.org/papers/JETIR1904549.pdf