3. Consider a drilled, rough concrete pile with diameter B = 1m and length D = 10m embeddedin a site underlain by a 5m thick layer of sand with fiction angle = 41 degrees and K, = 0.5 thatlies over an 8m thick layer of clay with fiction angle = 36 degrees, K₁ = 0.38, and Su = 70 kPa. Usethe Kulhawy et al method.A. Determine the long term end bearing capacity of the pile. Ans. 5907 kNB. Determine the long term capacity of the pile. Ans. 6353 kN. Note: assume OCR = 1when the OCR of a coarse grained soil is unknown (write this in your reader).

B = 1m D = 10m Su,clay = 70 kPa

3. Consider a drilled, rough concrete pile with diameter B = 1m and length D = 10m embedded in a site underlain by a 5m thick layer of sand with fiction angle = 41 degrees and Ko = 0.5 that lies over an 8m thick layer of clay with fiction angle = 36 degrees, K. =0.38, and Su = 70 kPa. Use the Kulhawy et al method. A. Determine the long term end bearing capacity of the pile. Ans. 5907 kN B. Determine the long term capacity of the pile. Ans. 6353 kN. Note: assume OCR = 1 when the OCR of a coarse grained soil is unknown (write this in your reader).

3. Consider a drilled, rough concrete pile with diameter B = 1m and length D = 10m embedded in a site underlain by a 5m thick layer of sand with fiction angle = 41 degrees and Ko = 0.5 that lies over an 8m thick layer of clay with fiction angle = 36 degrees, K. =0.38, and Su = 70 kPa. Use the Kulhawy et al method. A. Determine the long term end bearing capacity of the pile. Ans. 5907 kN B. Determine the long term capacity of the pile. Ans. 6353 kN. Note: assume OCR = 1 when the OCR of a coarse grained soil is unknown (write this in your reader).

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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Concept explainers

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.

Question

3. Consider a drilled, rough concrete pile with diameter B = 1m and length D = 10m embedded
in a site underlain by a 5m thick layer of sand with fiction angle = 41 degrees and K, = 0.5 that
lies over an 8m thick layer of clay with fiction angle = 36 degrees, K₁ = 0.38, and Su = 70 kPa. Use
the Kulhawy et al method.
A. Determine the long term end bearing capacity of the pile. Ans. 5907 kN
B. Determine the long term capacity of the pile. Ans. 6353 kN. Note: assume OCR = 1
when the OCR of a coarse grained soil is unknown (write this in your reader).

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