1.1. Definition of Preconsolidation Pressure

Try these first

1. 1.

   What is preconsolidation pressure?

   Hint

   Think about the stress levels that soil has been under.

2. 2.

   Classify a soil that has never experienced more stress than it currently has.

   Hint

   Consider the term 'normal' in its definition.

3. 3.

   What does the term preconsolidation pressure refer to?

   • Current vertical pressure on the soil
   • Maximum effective stress in soil history
   • Minimum soil stress experienced

   Hint

   Think about what history means for soil!

4. 4.

   True or False: Over-consolidated soils have never been subjected to stress higher than their current load.

   • True
   • False

   Hint

   Consider the definition of 'over'.

5. 5.

   A construction site has both normally consolidated and over-consolidated soils. Determine the potential risks for structural integrity and suggest methods to mitigate those risks.

   Hint

   Consider the soil strength factors involved.

6. 6.

   Analyze a site with under-consolidated soils showing apparent distress in a new building. Recommend a course of action considering its preconsolidation pressure.

   Hint

   Think about pre-construction strategies to enhance stability.