Saturated clay 3 m Groundwater table Clay 17 kN/m³ C) 25 kN/m² 16.kN/m³ A-72 48 40 kN/m² 3 m A2-512.16 0m Clay Ysat = 18 kN/m³ Diameter - 457 mm A3 = 1392.8 σ (kN/m²) 98.33 180.23 20 m

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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Refer to the pipe pile in saturated clay shown in Figure 1. For the pile,

  1. Calculate the skin resistance (Qs) by (1) the α method, (2) the λ method, and (3) the β method. For the β method, use ϕ’R= 300 for all clay layers. The top 10 m of clay is normally consolidated.The bottom clay layer has an OCR = 2. (Note: diameter of pile = 457 mm)
  2. Using the results of Exercise 10, estimate the allowable pile capacity (Qall). Use FS = 4
Saturated clay
3 m
Groundwater
table
Clay 17 kN/m³
C) 25 kN/m²
16.kN/m³
A-72
48
40 kN/m² 3 m
A2-512.16
0m
Clay
Ysat = 18 kN/m³
Diameter -
457 mm
A3
= 1392.8
σ (kN/m²)
98.33
180.23
20 m
Transcribed Image Text:Saturated clay 3 m Groundwater table Clay 17 kN/m³ C) 25 kN/m² 16.kN/m³ A-72 48 40 kN/m² 3 m A2-512.16 0m Clay Ysat = 18 kN/m³ Diameter - 457 mm A3 = 1392.8 σ (kN/m²) 98.33 180.23 20 m
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