[Problem MS-P] An experimental setup in the laboratory is shown (All dimensions are in mm). Two 50 x 50 mm soil samples A and B are placed under constant head. The permeability of sample A is half that of sample B. If 300 ml of water flows through the sample in 5.5 minutes, determine the equivalent hydraulic conductivity (in cm/s). A 6.11 x 10-2 B) 3.67 (D) 6.11 x 3.67 x 10-4 10-2 Water 412 140 A 70 B Datum 287

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Laboratory Determination of Hydraulic Conductivity

Hydraulic conductivity is the measure of flowability of water inside the soil in the presence of a hydraulic gradient. The hydraulic gradient is defined as the difference in the water heads in the soil, which induces a water motion. In simple terms, a hydraulic gradient is the presence of a potential that induces a flow of water.