36.1. Permeability

Try these first

1. 1.

   What is permeability?

   Hint

   Think about water moving through soil.

2. 2.

   Name one factor that affects permeability.

   Hint

   Consider what type of soil allows more water to pass.

3. 3.

   What is permeability a measure of?

   • A measure of fluid pressure
   • A measure of fluid flow through porous material
   • A measure of soil strength

   Hint

   Focus on what property describes fluid movement.

4. 4.

   True or False: Larger grains typically reduce permeability.

   • True
   • False

   Hint

   Remember how different grain sizes affect water flow.

5. 5.

   Given a void ratio of 0.4 and a degree of saturation of 0.5, determine how these factors might influence the permeability of a granular soil.

   Hint

   Consider how voids and water presence relate.

6. 6.

   A certain soil has a k value of 0.002 m/s. If the area of the test is 2 m² and the hydraulic gradient is 3, calculate the discharge.

   Hint

   Utilize the formula Q = kAi for discharge.