Practice Mohr-coulomb Failure Criterion (2.6.1) - Engineering Characteristics of Soils

Practice: Mohr-Coulomb Failure Criterion

Lesson 2.6.1Engineering Characteristics of Soils

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8 questions

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6 sample questions

Question 1.
What is the Mohr-Coulomb failure criterion used for?
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Think about what soil stability means in construction.
Question 2.
Define cohesion in soil mechanics.
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Consider what happens to sand versus clay.
3Question 3.
What parameters does the Mohr-Coulomb criterion depend on?
- Only cohesion
- Cohesion and angle of internal friction
- Only normal stress
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Look back at the equation we discussed.
4Question 4.
True or False: Cohesion is a property that varies significantly between different types of soils.
- True
- False
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Recall the examples of cohesive soils like clay versus granular soils.
Question 5.
A geotechnical engineer conducts a triaxial test on a soil sample that shows a cohesion of 15 kPa and a friction angle of 25°. Calculate the shear strength when the normal stress is 80 kPa.
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Work through the equation step-by-step.
Question 6.
A construction site on sandy soil has been found inadequate for supporting a foundation based on Mohr-Coulomb failure criteria. Discuss what soil properties might be problematic and suggest solutions.
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Consider how different types of soil interact under pressure.

4 more questions in this section. Enroll free to practise them all.