PROB 1A circular prestressed concrete pile having adiameter of 40 cm is to be driven in a layer ofloose sand. The design capacity of the pile is510 kN with a factor of safety of 3. The soil hasthe folowing properties:y = 18.1 kN/cu mk = 3.0Ng = 80tan a = 0.451. Compute the end bearing capacity of the pile2. Find the skin friction expected to developalong the shaft of the pile3. Compute the required length of the pile. Prestressed concrete piles are planned for useas the foundation for a waterfront structure.Soil condition is dense sand with water tablelocated 3m below the ground.Properties of soil:Y = 19.65 kN/m³o' = Ysub = 10.22 kN/m3tang= 0.45& = 370K= 3Nq = 80%3DConsider a single 30 cm square pile driven 9 mbelow the ground with critical depth of 6 m1. Det the capacity of pile due to skin friction2. Compute the capacity due to end bearing3. Calculate the design load that the pile couldcarry if the factor of safety is 3.

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PROB 1 A circular prestressed concrete pile having a diameter of 40 cm is to be driven in a layer of loose sand. The design capacity of the pile is 510 kN with a factor of safety of 3. The soil has the following properties: y = 18.1 kN/cu m k = 3.0 Ng = 80 tan a = 0.45 1. Compute the end bearing capacity of the pile 2. Find the skin friction expected to develop along the shaft of the pile 3. Compute the required length of the pile.

PROB 1 A circular prestressed concrete pile having a diameter of 40 cm is to be driven in a layer of loose sand. The design capacity of the pile is 510 kN with a factor of safety of 3. The soil has the following properties: y = 18.1 kN/cu m k = 3.0 Ng = 80 tan a = 0.45 1. Compute the end bearing capacity of the pile 2. Find the skin friction expected to develop along the shaft of the pile 3. Compute the required length of the pile.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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