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In a triaxial test, what is the purpose of applying confining pressure?

Practice Questions

Q1
In a triaxial test, what is the purpose of applying confining pressure?
  1. To simulate in-situ conditions
  2. To increase soil permeability
  3. To measure plasticity
  4. To determine void ratio

Questions & Step-by-Step Solutions

In a triaxial test, what is the purpose of applying confining pressure?
  • Step 1: Understand that a triaxial test is a laboratory test used to measure the strength of soil.
  • Step 2: Recognize that soil in nature is usually under pressure from the weight of the soil above it.
  • Step 3: Realize that confining pressure is applied to mimic this natural pressure that soil experiences underground.
  • Step 4: Know that by applying confining pressure, we can create conditions similar to those found in the field.
  • Step 5: Understand that this helps us evaluate how strong the soil is when it is under pressure, which is important for construction and engineering.
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