2.7. Compressibility and Consolidation

Try these first

1. 1.

   What is compressibility in terms of soil?

   Hint

   Think about how soils change when weight is added.

2. 2.

   Define consolidation in the context of soil.

   Hint

   Consider what happens to saturated soil over time under load.

3. 3.

   What is the definition of compressibility?

   • The tendency to expand under pressure
   • The tendency to decrease in volume under pressure
   • The speed of soil drainage

   Hint

   Think about how load affects soil.

4. 4.

   True or False: Consolidation occurs instantly after loading.

   • True
   • False

   Hint

   Consider the difference between immediate and long-term effects.

5. 5.

   A soil sample has a low compression index and is subjected to a 50 kPa load. Predict its settlement behavior compared to a sample with a high compression index under the same load.

   Hint

   Focus on the definitions of low and high compression indexes.

6. 6.

   Design a basic outline for a pavement structure that considers soil compressibility and consolidation in a region with significant clay deposits. What strategies would ensure the longevity of the pavement?

   Hint

   Think about material choices and methods used in roadway design.