2.7.2. One-Dimensional Consolidation Test

Try these first

1. 1.

   Define compressibility in soil.

   Hint

   Think about what happens to soil when you compress it.

2. 2.

   What does the Coefficient of Consolidation (Cv) represent?

   Hint

   Consider how quickly a sponge releases water.

3. 3.

   What does Cv stand for?

   • Coefficient of Variation
   • Coefficient of Consolidation
   • Cohesive Volume

   Hint

   Think of what it means for soil under pressure.

4. 4.

   True or False: A high Cc value indicates low soil compressibility.

   • True
   • False

   Hint

   Think about the implications of compressibility.

5. 5.

   A soil sample exhibits a Cv of 0.5 m²/year. If the load is applied and the settlement is monitored over the first year, calculate the expected amount of settlement after one year if the initial thickness was 1 meter.

   Hint

   Use the relationship between Cv, time, and settlement.

6. 6.

   A construction project needs to determine the impact of using different soil types on the foundation. Compare and contrast the expected Cc values of sand, silt, and clay soils. Then recommend which soil is best for minimal settlement.

   Hint

   Reflect on how compressibility varies among the soil types.