Clay A precast pile having a diameter of 400 mm is driven through a 4.5 m thick soft clay layer into a dense compacted sand deposit as shown in the figure. 1. Compute the end bearing capacity. 2. Compute the ultimate skin frictional capacity of the pile if the allowable capacity is 595 kN with a factor of safety of 3.00. 3. Compute the total length of the pile neglėcting the skin friction in clay layer. 4. Compute the allowable capacity of the pile assuming a factor of safety of 3.5. 4.5 m Y 18 KN/m warer table Sand Ya19.60 KN/m k=1.25 =0.48 Ng = 42

Clay A precast pile having a diameter of 400 mm is driven through a 4.5 m thick soft clay layer into a dense compacted sand deposit as shown in the figure. 1. Compute the end bearing capacity. 2. Compute the ultimate skin frictional capacity of the pile if the allowable capacity is 595 kN with a factor of safety of 3.00. 3. Compute the total length of the pile neglėcting the skin friction in clay layer. 4. Compute the allowable capacity of the pile assuming a factor of safety of 3.5. 4.5 m Y 18 KN/m warer table Sand Ya19.60 KN/m k=1.25 =0.48 Ng = 42

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter12: Pile Foundations

Section: Chapter Questions

Problem 12.8P: Consider a 500 mm diameter pile having a length of 18 m in a clay. Given: γ = 20.0 kN/m3 and cu = 60...

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Determine the maximum load that can be allowed on a 500 mm diameter and 18 m long pile driven into a clay where = 20.0 kN/m3 and cu = 60 kN/m2. Use the a method for determining the skin friction. Allow a factor of safety of 3. What percentage of the ultimate load is being carried by the pile shaft?
Consider a 500 mm diameter pile having a length of 18 m in a clay. Given: γ = 20.0 kN/m3 and cu = 60 kN/m2. Determine the maximum allowable load (Qall) with FS = 3. Use the α method and Table 12.11 for determining the skin friction and Eq. (12.20) for determining the point load. Allow a factor of safety of 3. What percentage of the ultimate load is being carried by the pile shaft? Is it a friction pile?
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A 400-mm diameter and 15 m long concrete pile is driven into a sand where = 18.0 kN/m3 and = 31. Assuming = 0.65 and K = 1.4 Ko, determine the load carrying capacity of the pile with a factor of safety of 3.
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