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4 cards from this section. Quick, good the night before a test.
What is the purpose of the constant head method?
Think about the type of soils this method is designed for.
Name one measurement taken during a falling head test.
Consider what happens to the water in the standpipe.
What is the constant head method primarily used for?
Think about which type of soil allows for a more consistent flow.
True or False: The falling head method can be suitable for all types of soil.
Remember the specific soil types each method is recommended for.
A constant head permeameter measures water flow at 3 liters/min through a 1 meter soil sample with a head of 2 meters. Calculate the permeability.
Keep the units consistent for accurate calculations.
In a falling head test, the head drops from 0.8 m to 0.3 m over 15 minutes. If the test setup gives an effective area of standpipe of 0.005 m^2, determine the permeability.
Focus on the logarithmic relationship between the heads for accurate results.
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