A soil profile is provided below. The estimated stresses from a spread footing overlying a 9 meter thick normally consolidated clay layer are: 180.0 kN/sq m (top of the clay layer) 97.2 kN/sq m (middle of the clay layer) 64.3 kN/sq m (bottom of the clay layer) Estimate the primary settlement (in meters) of the clay layer assuming Cc'= Cc/log(1+eo)= 0.22 and Cs'=Cs/log(1+eo) = 0.04 taken from consolidation curves. ASsume the pre-consolidation pressure is 100 kN/sq m. Assume no settlement from the overlying sand layer.
A soil profile is provided below. The estimated stresses from a spread footing overlying a 9 meter thick normally consolidated clay layer are: 180.0 kN/sq m (top of the clay layer) 97.2 kN/sq m (middle of the clay layer) 64.3 kN/sq m (bottom of the clay layer) Estimate the primary settlement (in meters) of the clay layer assuming Cc'= Cc/log(1+eo)= 0.22 and Cs'=Cs/log(1+eo) = 0.04 taken from consolidation curves. ASsume the pre-consolidation pressure is 100 kN/sq m. Assume no settlement from the overlying sand layer.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A soil profile is provided below. The estimated stresses from a
spread footing overlying a 9 meter thick normally consolidated
clay layer are:
180.0 kN/sq m (top of the clay layer)
97.2 kN/sq m (middle of the clay layer)
64.3 kN/sq m (bottom of the clay layer)
Estimate the primary settlement (in meters) of the clay layer
assuming Cc'= Cc/log(1+eo)= 0.22 and Cs'=Cs/log(1+eo) = 0.04
taken from consolidation curves. Assume the pre-consolidation
pressure is 100 kN/sq m. Assume no settlement from the overlying
Depth
O (GS)
sand layer.
Yan=(7.3
SAND
1-
-3m
XSAT = 19.74
ELAY
- 12 m
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