Civil Engineering > GATE 2017 SET-2 > Geotechnical Engineering
Two identical concrete piles having the plan dimensions 50 cm × 50 cm are driven into a homogeneous sandy layer as shown in the figures. Consider the bearing capacity factor Nq for φ = 30° as 24.
If QP1 and QP2 represent the ultimate point bearing resistances of the piles under dry and submerged conditions, respectively, which one of the following statements is correct?
A
QP1 > QP2 by about 100%
B
QP1 < QP2 by about 100%
C
QP1 > QP2 by about 5%
D
QP1 < QP2 by about 5%

Correct : a

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