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GATE Civil Engineering (CE) 2011 Solved Paper

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Question : 46

Total: 65

A singly under-reamed, 8-m long ,RCC pile(shown in the adjoining figure) weighing 20 kN with 350 mm shaft diameter and 750 mm under-ream diameter is installed within stiff, saturated silty clay(undrained shear strength is 50 kpa, adhesion factor is 0.3, and the applicable bearing capacity factor is 9) to counteract the impact of soil swelling on a structure constructed above. Neglecting suction and the contribution of the under-ream to the adhesive shaft capacity, what would be the estimated ultimate tensile capacity(rounded off to the nearest interger value of kN) of the pile?

132 kN
156 kN
287 kN
307 kN

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