Problem # 1. A constant head permeability test is performed on a sample of granular soil. The length of the soil sample is 15 cm and the cross-sectional area is 10 cm^2. If a 24 cm^3 volume of water passes through the oil sample in a 3-minute period and the constant head is 30 cm determine the following a. Determine the coefficient of permeability of the soil. b. Find the discharge velocity. c. Compute the seepage velocity if the void ratio is 0.64.

In a constant head permeability test in the laboratory as shown in Figure Q2(e), the data is recorded in Table Q2(b). The void ratio of the soil specimen is 0.46. Determine; (i) Hydraulic conductivity, k, of the soil in cm/sec. (ii) Discharge velocity in cm/sec.

1. A series of Atterberg limit tests was performed on samples of a gray-brown silty clay. The table below summarizes the results of four liquid limit tests. Using this data, Trial Number Number of blows Weight of wet sample + container (g) Weight of dry sample + container (g) Weight of container (g) 15.61 16.82 16.34 a. Determine the flow curve for the soil (graph and show the equation of the best fit line) b. Determine the flow index for the soil 1 23 2 36 3 26 15.12 4 c. Calculate the liquid limit d. Calculate the plasticity index Plastic limit tests show an average of 38.5%. 23.50 26.94 26.86 26.27 21 19.89 22.10 22.59 21.96

A cylindrical soil sample with length = 15cm and diameter = 4cm was taken from a site where a groundwater contamination piume was found. The sample was tested in the lab to determine its hydraulic conductivity. A hydraulic gradient of 0.05 was applied across the sample, and a flow rate of 0.025 cm³/sec was measured. Calculate the hydraulic conductivity of the soil sample using Darcy's law.