12.20 A 600 mm diameter and 25 m long driven concrete pile car- ries a column load of 1200 kN. It is estimated that the shaft carries 900 kN and the point carries 300 kN. Determine the settlement of the pile head using the Poulos and Davis method with the following data: E = 25 MN/m², Ep = 30,000 MN/m², and μ, = 0.2 12.21 Redo Problem 12.20 using Vesic's method, assuming that the skin friction is distributed uniformly along the shaft.

12.20 A 600 mm diameter and 25 m long driven concrete pile car- ries a column load of 1200 kN. It is estimated that the shaft carries 900 kN and the point carries 300 kN. Determine the settlement of the pile head using the Poulos and Davis method with the following data: E = 25 MN/m², Ep = 30,000 MN/m², and μ, = 0.2 12.21 Redo Problem 12.20 using Vesic's method, assuming that the skin friction is distributed uniformly along the shaft.

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

Please do 12,21

12.20 A 600 mm diameter and 25 m long driven concrete pile car-
ries a column load of 1200 kN. It is estimated that the shaft
carries 900 kN and the point carries 300 kN. Determine
the settlement of the pile head using the Poulos and Davis
method with the following data:
E = 25 MN/m², E = 30,000 MN/m², and μ = 0.2
12.21 Redo Problem 12.20 using Vesic's method, assuming that
the skin friction is distributed uniformly along the shaft.

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Step 1: the we have to determine settlement of the pile head using Vesic's method

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Step 2: using formula to calculate the total settlement of the pile by vesic method

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Step 3: elastic settlement and influence factor.

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Step 4: total settlement of the pile

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