For a constant head laboratory permeability test on a fine sand. The following values are obtained: Length of Specimen, L = 10 inches Diameter of Specimen = 2.5 inches Head difference, h = 2.5 inches Water collected in 2 mins = 0.044 in3 The void ratio of the specimen is 0.34. Compute the following: a) Hydraulic Conductivity of the soil in in/min b) Discharge Velocity in in/min c) Seepage Velocity in in/min
1.) For a constant head laboratory permeability test on a fine sand. The
following values are obtained:
Length of Specimen, L = 10 inches
Diameter of Specimen = 2.5 inches
Head difference, h = 2.5 inches
Water collected in 2 mins = 0.044 in3
The void ratio of the specimen is 0.34.
Compute the following:
a) Hydraulic Conductivity of the soil in in/min
b) Discharge Velocity in in/min
c) Seepage Velocity in in/min
2.) A series of direct shear test was performed on a soil sample. The
data for the experiments are tabulated as follows:
Specimen No. Normal Stress (kPa) Shearing Stress (kPa)
1 200 450
2 400 520
3 600 590
4 1000 730
a) Compute the cohesion of the soil.
b) Compute the angle of internal friction.
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