Practice Total Stress Mohr’s Circles (1.6) - Triaxial Tests - Geotechnical Engineering

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9 questions

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6 sample questions

Question 1.
What is the purpose of a triaxial test?
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Think about how soil behaves under pressure.
Question 2.
Name the three types of triaxial tests.
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They refer to how the soil is allowed to manage pore water.
3Question 3.
What does a triaxial test aim to determine?
- Soil density
- Soil strength
- Soil permeability
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Focus on the purpose of the test.
4Question 4.
True or False: The effective stress is calculated by subtracting pore pressure from total stress.
- True
- False
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Remember the effective stress formula.
Question 5.
Given a soil with a cohesion of 5 kPa and an angle of internal friction of 30 degrees, calculate the shear strength at a total normal stress of 100 kPa using the Mohr-Coulomb failure criterion.
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Don't forget to convert the angle to radians if using a calculator that requires it.
Question 6.
Discuss the impact of different pore water pressures on effective stress during a consolidated-undrained test.
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Think about how water affects soil structure and strength.

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