In soil mechanics, what does the term 'effective stress' refer to?

Practice Questions

Q1
In soil mechanics, what does the term 'effective stress' refer to?
  1. Total stress minus pore water pressure
  2. Total stress plus pore water pressure
  3. Pore water pressure only
  4. Soil weight per unit volume

Questions & Step-by-Step Solutions

In soil mechanics, what does the term 'effective stress' refer to?
  • Step 1: Understand that soil is made up of solid particles and water.
  • Step 2: Recognize that when weight is applied to soil, it creates a total stress.
  • Step 3: Know that water in the soil creates pressure, called pore water pressure.
  • Step 4: Learn that effective stress is calculated by subtracting pore water pressure from total stress.
  • Step 5: Remember that effective stress is important because it helps us understand how soil behaves under different conditions.
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