36.1.2.2. Void ratio

Try these first

1. 1.

   What is the void ratio if a soil has 4 cubic meters of voids and 2 cubic meters of solids?

   Hint

   Use the formula: e = V_v / V_s.

2. 2.

   How does an increase in void ratio affect permeability?

   Hint

   Think about how space for water affects flow.

3. 3.

   What does the void ratio represent?

   Hint

   Think about how voids and solids interact in a soil sample.

4. 4.

   Is a higher void ratio usually associated with higher permeability?

   • True
   • False

   Hint

   Consider how spaces in the soil affect water flow.

5. 5.

   A soil has a void ratio of 4. If the soil's specific weight is 18 kN/m3, calculate the volume of voids and the volume of solids in a 1 m³ soil sample.

   Hint

   Use the formula: V_v = e * V_s.

6. 6.

   Analyze how a void ratio change from 0.3 to 0.6 might impact the drainage capability of a building site over time.

   Hint

   Reflect on soil behavior under increased permeability conditions.