Question 2 The Gaborone City Council proposes to construct various structures on a site consisting of a saturated clay layer 6.5m thick after which it is underlain by an incompressible layer. a) A foundation 10m long and 5 m wide applies a uniform pressures of q = 75 kN/m2 on the surface of the clay described above. Given that the undrained modulus of the clay Eu = 8 MN/m2, determine the immediate settlement of the foundation. b) Figure Q2 now shows a 4 mx 4 m pad foundation placed in the same clay deposit at a depth of 1.5m. The soil profile and the associated properties are as detailed in the figure. Calculate the consolidation settlement using the Cc method.
Question 2 The Gaborone City Council proposes to construct various structures on a site consisting of a saturated clay layer 6.5m thick after which it is underlain by an incompressible layer. a) A foundation 10m long and 5 m wide applies a uniform pressures of q = 75 kN/m2 on the surface of the clay described above. Given that the undrained modulus of the clay Eu = 8 MN/m2, determine the immediate settlement of the foundation. b) Figure Q2 now shows a 4 mx 4 m pad foundation placed in the same clay deposit at a depth of 1.5m. The soil profile and the associated properties are as detailed in the figure. Calculate the consolidation settlement using the Cc method.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question 2
The Gaborone City Council proposes to construct various structures on a site consisting of a
saturated clay layer 6.5m thick after which it is underlain by an incompressible layer.
a) A foundation 10m long and 5 m wide applies a uniform pressures of q = 75 kN/m2 on the
surface of the clay described above. Given that the undrained modulus of the clay Eu = 8
MN/m2, determine the immediate settlement of the foundation.
b) Figure Q2 now shows a 4 mx 4 m pad foundation placed in the same clay deposit at a depth
of 1.5m. The soil profile and the associated properties are as detailed in the figure. Calculate
the consolidation settlement using the Cc method.
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Transcribed Image Text:AZ
1.5 m
1.5 m
+
2.0 m
1.5 m
7
11
q = 100 kPa
k
Water table
Y=19.5 kN/m², C = 0.8
=0.8
T...-19.5 kN/m²¹, C =0.8
e, 0.8
Y_=18.0 kN/m², C = 0.31
TIL
e = 1.0
Y = 19.5 kN/m, C = 0.26
e = 0.7
P₁
P₁
AH (m)
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