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Buckling Capacity of Concrete Piles in Sand
Senior Lecturer, Department of Civil Engineering, T. Sivasamy Graduate Student, Department of Civil Engineering, P. Parameswaran Professor, Department. of Civil Engineering, | |
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ABSTRACT |
Experimental investigation on the buckling behaviour of concrete piles, 40mm·50mm and 2200mm high, partially embedded in dry sand subjected to axial loads and eccentric loads have been carried out in a sand box of size 600mm·600mm·1500mm. Concrete piles having unembedded length to embedded length ratios of lu/l=0.40, 0.50 and 0.55, were subjected to axial loads. An eccentricity to least section size ratios of e/D=0.5, 1.0 and 1.5, with constant embedment length of 1200mm, were used under eccentric loads. Dry river sand of specific gravity 2.62, uniformity coefficient 1.4, emax= 0.68, emin= 0.47 has been used as foundation medium. Based on the experimental results, the influence of unembedded length and eccentricity have been investigated on the variation of load-deflection along the entire length for each increment of load up to failure, ultimate load and critical load of slender concrete pile. Salient conclusions are reported from the study.
Keywords: Partially Embedded Pile, Concrete Pile, Axial loads, Eccentric loads, Ultimate load, Critical load, Sand.
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