The soil sample presented in Figure below is under constant head permeability test. The soil is consist of a silty sand (SM) with k = 5×10-3 cm/s and specific gravity of 2.70. The soil is fully saturated and its moisture content is determined to be 18.5%. Determine the time required for the plug of colored water to pass through the soil (i.e., from when the leading edge first enters the soil to when it begins to exit). Use seepage velocity for your calculation.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The soil sample presented in Figure below is under constant head permeability test. The soil is consist of a silty sand (SM) with k = 5×10-3
cm/s and specific gravity of 2.70. The soil is fully saturated and its moisture content is determined to be 18.5%. Determine the time required for the plug of colored water to pass through the soil (i.e., from when the leading edge first enters the soil to when it begins to exit). Use seepage velocity for your calculation.

 

Controlled inflow
Upper
reservoir
185 mm
30-mm dia
inlet and outlet pipes
' Discharge
60 mm
Lower
reservoir
Plug of
colored water
100-mm dia × 220-mm long soil specimen
Transcribed Image Text:Controlled inflow Upper reservoir 185 mm 30-mm dia inlet and outlet pipes ' Discharge 60 mm Lower reservoir Plug of colored water 100-mm dia × 220-mm long soil specimen
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