2.7. Pore Pressure

Try these first

1. 1.

   Define pore pressure in your own words.

   Hint

   Think about where water sits in the soil.

2. 2.

   What happens when soil is compacted dry of optimum?

   Hint

   Consider the role of moisture in soil density.

3. 3.

   What is pore pressure?

   Hint

   Think about how water interacts in soil.

4. 4.

   Does compacting clayey soil dry of optimum lead to more pore water pressure compared to wet of optimum?

   • True
   • False

   Hint

   Consider the relationship between moisture and pore pressure.

5. 5.

   Design a soil compaction strategy for a construction project in an area with high groundwater levels. Discuss how you would manage pore pressure during this process.

   Hint

   Consider the techniques you learned about managing moisture.

6. 6.

   Evaluate the impact of excessive pore pressure in a case where a building foundation failed. What key factors should have been monitored?

   Hint

   Reflect on the traits of stable versus unstable soils.