Problem 1. A 12-m-long 356-mm-diameter concrete pile is shown in Figure below. Estimate theallowable capacity, Qaul, of the pile. Use K = 1.3 Ko, 8' = 0.8 Ø' and a factor of safety equal to3.12 mConcrete pile356 mmLoose sand$₁ = 30°y = 17.5 kN/m³Dense sand$2 = 42°y = 18.5 kN/m³

###Allowable Bearing Capacity of soil for pile in Cohesionless Soil###

Answered: Problem 1. A 12-m-long 356-mm-diameter…

Problem 1. A 12-m-long 356-mm-diameter concrete pile is shown in Figure below. Estimate the allowable capacity, Qall, of the pile. Use K = 1.3 Ko, 8' = 0.8 Ø' and a factor of safety equal to 3.

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 18.7P

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Foundation construction

Question

Problem 1. A 12-m-long 356-mm-diameter concrete pile is shown in Figure below. Estimate the
allowable capacity, Qaul, of the pile. Use K = 1.3 Ko, 8' = 0.8 Ø' and a factor of safety equal to
3.
12 m
Concrete pile
356 mm
Loose sand
$₁ = 30°
y = 17.5 kN/m³
Dense sand
$2 = 42°
y = 18.5 kN/m³

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Step 1: Calculation of

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Step 2: Introduction and finding of effective pressures

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Step 3: Areas of pile

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Step 4: Calculation of Nq Value and earth pressure coefficient K

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Step 5: Diagram for find Nq Using L/d Ratio And angle of friction at base of pipe

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Step 6: Final Calculation for Allowable Capacity of Soil

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