Boundary Conditions

To provide the students with a visual that displays singly drained and doubly drained soil systems, one clear plastic boxes is prepared with a clay soil layer bound by two clean sand layers and a second clear plastic box is prepared with a clay soil layer bound by a clean sand layer on top and an impermeable rock layer below. A grease marker is used to show how the longest drainage path is evaluated in each scenario and these classroom models are referred to as time rate of consolidation is discussed.

 

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