A single vertical friction pile of diameter 500 mm and length 20 m is subjected to a vertical compressive load. The pile is embedded in a homogeneous sandy stratum where: angle of internal friction is = 30°, dry unit weight (γd)= 20 kN/m3 and angle of wall friction is 2ϕ/3. Considering the coefficient of lateral earth pressure (K) = 2.7 and the bearing capacity factor (Nq) = 25, the ultimate bearing capacity of the pile (in kN) is________

A single vertical friction pile of diameter 500 mm and length 20 m is

1.	A single vertical friction pile of diameter 500 mm and length 20 m is subjected to a vertical compressive load. The pile is embedded in a homogeneous sandy stratum where: angle of internal friction is = 30°, dry unit weight (γd)= 20 kN/m3 and angle of wall friction is 2ϕ/3. Considering the coefficient of lateral earth pressure (K) = 2.7 and the bearing capacity factor (Nq) = 25, the ultimate bearing capacity of the pile (in kN) is________
A.	196.56
B.	1965.6
C.	617.5
D.	6175
Answer» E.

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