(a) Determine the allowable load-carrying capacity of the bored concretepile for: embedded length = 8 m, and embedded length = 11 m. Take thediameter of the pile as 0.5m. (Answer Qall = 357 kN @8m and 573 kN@11m for FS = 3).FSThe factor of safety generally used ranges from 2.5 to 4, depending onthe uncertainties surrounding the calculation of ultimate load.Depth(m)v = 20 kN/m3p' = 30°Ks = 1.0Loose granular filly = 21 kN/m3p' = 35°Ks = 2.0Dense gravel7v = 20 kN/m3cu at 7.0 m = 120 kPacu at 8.0 m = 145 kPaGlacial claycu at 11.0 m = 220 kPa, adhesion factor, a= 0.6, Nc = 911

Answered: Image /qna-images/answer/20f2ef63-0f90-4dcf-88d2-e8bcd2e7949b.jpg

(a) Determine the allowable load-carrying capacity of the bored concrete pile for: embedded length = 8 m, and embedded length = 11 m. Take the diameter of the pile as 0.5m. (Answer Qall = 357 kN @8m and 573 kN @11m for FS = 3). %3D

(a) Determine the allowable load-carrying capacity of the bored concrete pile for: embedded length = 8 m, and embedded length = 11 m. Take the diameter of the pile as 0.5m. (Answer Qall = 357 kN @8m and 573 kN @11m for FS = 3). %3D

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter18: Pile Foundation

Section: Chapter Questions

Problem 18.10P

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Concept explainers

Measuring site work, Excavation and Piling

Bid drawings typically include very little material about the precise requirements of site work operations, measuring site work and excavation work differs from measuring most other works on a construction project. The actual site work conditions are not provided and also the dimensions of the excavations are not known during the pre-construction phase. The precise measurement of the excavation and backfill of the earth material and topsoil is important for a contractor to decide upon the total cost required for the process. All the works should be carried out under OSHA (Occupational Safety and Health Administration) standards to ensure the safety of the workers.

Question

(a) Determine the allowable load-carrying capacity of the bored concrete
pile for: embedded length = 8 m, and embedded length = 11 m. Take the
diameter of the pile as 0.5m. (Answer Qall = 357 kN @8m and 573 kN
@11m for FS = 3).
FS
The factor of safety generally used ranges from 2.5 to 4, depending on
the uncertainties surrounding the calculation of ultimate load.
Depth
(m)
v = 20 kN/m3
p' = 30°
Ks = 1.0
Loose granular fill
y = 21 kN/m3
p' = 35°
Ks = 2.0
Dense gravel
7
v = 20 kN/m3
cu at 7.0 m = 120 kPa
cu at 8.0 m = 145 kPa
Glacial clay
cu at 11.0 m = 220 kPa, adhesion factor, a
= 0.6, Nc = 9
11

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