SITUATION: A precast concrete pile 16 m long has a diameter of 400 mm. The pile is driven through layers of clay and a dense compact sand with the upper layer which is clay having a thickness of 5 m and a unit weight of 16 kN/m². Water table is at the bottom of the clay layer. Saturated unit weight of sand is 18 kN/m?, with a bearing capacity factor of 72 and a lateral pressure factor for compression of 1.24. Angle of friction of the concrete pile is 28°. Neglect skin friction on the clay layer. Determine the design capacity of the pile using a factor of safety of 2.5.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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SITUATION: A precast concrete pile 16 m long has a diameter of 400 mm. The pile is driven through layers of clay and a dense compact sand with the upper
layer which is clay having a thickness of 5 m and a unit weight of 16 kN/m². Water table is at the bottom of the clay layer. Saturated unit weight of sand is 18
kN/m?, with a bearing capacity factor of 72 and a lateral pressure factor for compression of 1.24. Angle of friction of the concrete pile is 28°. Neglect skin
friction on the clay layer.
Determine the design capacity of the pile using a factor of safety of 2.5.
A
925.31 kN
985.48 kN
970.53 kN
D
994.75 kN
Transcribed Image Text:SITUATION: A precast concrete pile 16 m long has a diameter of 400 mm. The pile is driven through layers of clay and a dense compact sand with the upper layer which is clay having a thickness of 5 m and a unit weight of 16 kN/m². Water table is at the bottom of the clay layer. Saturated unit weight of sand is 18 kN/m?, with a bearing capacity factor of 72 and a lateral pressure factor for compression of 1.24. Angle of friction of the concrete pile is 28°. Neglect skin friction on the clay layer. Determine the design capacity of the pile using a factor of safety of 2.5. A 925.31 kN 985.48 kN 970.53 kN D 994.75 kN
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