As indicated in the following figure, an incompressible silty sand fill 16.4 ft thick was placed on top of a 49.2 ft thick layer of soft and compressible silty clay. Underlying the clay is a layer of incompressible sandy gravel. The soil properties of the silty clay layer are given in the following figure. The ultimate settlement, Sult = 5.64 ft, from the primary consolidation of silty clay layer due to the weight of the silty sand fill is calculated. A) Find the time rate of settlement by showing the Time [year] vs. Settlement [ft] curve. Show sample calculation when percentage of consolidation, Uavg = 50%  B) Compute and plot effective stress profile (σ’z vs. depth) at the Silty Clay layer in the following timing: a. Before placing the fill layer b. right after placing the fill layer c. Ten years after placing the fill layer d. 40 years placing the fill layer Show sample (hand) calculation at a depth of 41 ft and the timing of 10 years after placing the fill layer. can you show your work on excel and if you do can you show the formulas.

Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter9: Settlement Of Shallow Foundations
Section: Chapter Questions
Problem 9.5P
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As indicated in the following figure, an incompressible silty sand fill 16.4 ft thick was
placed on top of a 49.2 ft thick layer of soft and compressible silty clay. Underlying the
clay is a layer of incompressible sandy gravel. The soil properties of the silty clay layer are
given in the following figure. The ultimate settlement, Sult = 5.64 ft, from the primary
consolidation of silty clay layer due to the weight of the silty sand fill is calculated.

A) Find the time rate of settlement by showing the Time [year] vs. Settlement [ft] curve.
Show sample calculation when percentage of consolidation, Uavg = 50% 

B) Compute and plot effective stress profile (σ’z vs. depth) at the Silty Clay layer in the
following timing:
a. Before placing the fill layer
b. right after placing the fill layer
c. Ten years after placing the fill layer
d. 40 years placing the fill layer
Show sample (hand) calculation at a depth of 41 ft and the timing of 10 years after placing
the fill layer.

can you show your work on excel and if you do can you show the formulas.

O ft
16.4 ft
65.6 ft
82.0 ft
Fill Material - Silty Sand
(SM), y = 124.86 pcf,
Silty Clay (CL)
94.89 pcf
Y =
Normally Consolidated
1.1
0.36
0.06
9.235 ft²/year
eo =
Cc =
Ca=
C₁ =
Dense Sandy Gravel (GP),
Incompressible layer
Transcribed Image Text:O ft 16.4 ft 65.6 ft 82.0 ft Fill Material - Silty Sand (SM), y = 124.86 pcf, Silty Clay (CL) 94.89 pcf Y = Normally Consolidated 1.1 0.36 0.06 9.235 ft²/year eo = Cc = Ca= C₁ = Dense Sandy Gravel (GP), Incompressible layer
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great work! However, can you show the work you did/the data you used to create that graph. Please show excel data table.

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