2.1. Compression of Fine Grained Soil (Clay)

Try these first

1. 1.

   What does pore water pressure influence in soils?

   Hint

   Consider what happens to a sponge under pressure.

2. 2.

   Define effective stress in your own words.

   Hint

   Think about what stresses are actually contributing to the soil's ability to support loads.

3. 3.

   What primarily represents the soil skeleton in Terzaghi’s Spring Mass Analogy?

   • Water
   • Springs
   • Load
   • Air

   Hint

   Think about how the model is set up.

4. 4.

   True or False: Consolidation occurs more rapidly in clay than in sand.

   • True
   • False

   Hint

   Consider the nature of water flow through different soil types.

5. 5.

   A soil sample has a total stress of 80 kPa and a pore water pressure of 30 kPa. Calculate the effective stress.

   Hint

   Use the effective stress formula from our discussions.

6. 6.

   Design a civil engineering plan considering rapid loading on a clay soil site. What measures would you recommend to prevent excessive settlement?

   Hint

   Think about materials and methods to facilitate quicker pore water dissipation and load distribution.