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The unconfined compressive strength of a pure clay soil is 100 kN/m2. What is the value of cohesion of the soil in kN/m2?
- a)200
- b)100
- c)75
- d)50
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
The unconfined compressive strength of a pure clay soil is 100 kN/m2. ...
Cohesion of soil = C = qu/2
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The unconfined compressive strength of a pure clay soil is 100 kN/m2. ...
Given:
Unconfined compressive strength (UCS) of pure clay soil = 100 kN/m2
To find:
Cohesion of the soil in kN/m2
Solution:
The unconfined compressive strength (UCS) is related to the cohesion (c) and the angle of internal friction (φ) of the soil by the following equation:
UCS = 2c * tan(φ/2)
For a pure clay soil, the angle of internal friction is zero (φ = 0), so the equation simplifies to:
UCS = 2c * tan(0/2)
UCS = 2c * 0
UCS = 0
This means that for a pure clay soil, the cohesion is equal to the unconfined compressive strength.
Therefore, the cohesion of the soil = 100 kN/m2
Answer:
Option D - 50 (which is incorrect) is not the correct answer. The correct answer is option C - 75, which is not provided as an option.
Unconfined compressive strength (UCS) of pure clay soil = 100 kN/m2
To find:
Cohesion of the soil in kN/m2
Solution:
The unconfined compressive strength (UCS) is related to the cohesion (c) and the angle of internal friction (φ) of the soil by the following equation:
UCS = 2c * tan(φ/2)
For a pure clay soil, the angle of internal friction is zero (φ = 0), so the equation simplifies to:
UCS = 2c * tan(0/2)
UCS = 2c * 0
UCS = 0
This means that for a pure clay soil, the cohesion is equal to the unconfined compressive strength.
Therefore, the cohesion of the soil = 100 kN/m2
Answer:
Option D - 50 (which is incorrect) is not the correct answer. The correct answer is option C - 75, which is not provided as an option.
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The unconfined compressive strength of a pure clay soil is 100 kN/m2. What is the value of cohesion of the soil in kN/m2?a)200b)100c)75d)50Correct answer is option 'D'. Can you explain this answer?
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