Practice Second Part Of Effective Stress Principle (1.3.2) - Stresses in the Ground

Practice: Second Part of Effective Stress Principle

Lesson 1.3.2Stresses in the Ground

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9 questions

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6 sample questions

Question 1.
What is the formula for total stress at a certain depth?
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Remember that γ is the unit weight of the soil.
Question 2.
Define pore water pressure in simple terms.
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Think about how water behaves in soil.
3Question 3.
What is the formula for effective stress?
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Remember the relationship defined by Terzaghi.
4Question 4.
True or False: Pore water pressure is zero at the water table.
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Think about the definitions of water table and pressure.
Question 5.
A construction site has a loading of 50 kN/m² applied on the surface. If the unit weight of the soil is 18 kN/m³ and the depth of interest is 4 m below the surface, calculate the effective stress at that depth when the pore water pressure is 10 kN/m².
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Use the formulas for total and effective stress!
Question 6.
Discuss how negative pore pressure could affect the effective stress in a partially saturated soil above the water table, especially in terms of capillary rise.
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Consider suction effects and water dynamics in soils!

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