Practice Stresses (1.8) - Shear Strength Of Soil - Geotechnical Engineering

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6 sample questions

Question 1.
What is shear strength?
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Think about the sliding forces acting upon the soil.
Question 2.
Define cohesion in soil mechanics.
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Consider how particles stick together.
3Question 3.
What is the definition of shear strength?
- The resistance to sliding forces
- The weight of soil
- The density of soil
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Focus on what relates to sliding.
4Question 4.
True or False: Cohesion contributes to the shear strength of soil.
- True
- False
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Consider how particles hold together.
Question 5.
A slope with a height of 10 m and a base width of 5 m fails due to shear stress. Given the shear strength is 25 kPa, calculate the maximum mass of soil that could remain before failure occurs.
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Consider using the weight equation and compare it with shear stress evaluation.
Question 6.
A soil sample has a cohesion of 20 kPa and an internal friction angle of 45 degrees. Calculate the shear strength when the normal stress is 50 kPa.
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Make sure to plug in the values correctly.

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