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The equation t = C + σ tan φ is given by -
  • a)
    Rankine
  • b)
    Coulomb
  • c)
    Newton
  • d)
    Mohr
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The equation t = C + σ tan φ is given by -a)Rankineb)Coulombc)Newtond...
The total shear strength of a soil mass (T f ) is thus given by Coulomb’s equation
t=C+σ tanφ
Where σ = effective vertical stress
C = cohesion
φ = angle of internal friction of soil
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Most Upvoted Answer
The equation t = C + σ tan φ is given by -a)Rankineb)Coulombc)Newtond...
Explanation:

The equation t = C σ tan φ is a fundamental equation in soil mechanics, which is used to determine the shear strength of soil.

The equation is derived from Coulomb's law of friction, which states that the shear stress t that a soil can withstand is proportional to the normal stress σ and the coefficient of friction tan φ between the particles of the soil.

The constant C in the equation is known as the cohesion of the soil, which represents the shear strength of the soil due to the attraction forces between the particles.

Therefore, the equation t = C σ tan φ is known as Coulomb's equation for shear strength of soil.

Other options:

Rankine's equation is used to determine the lateral earth pressure on a retaining wall.

Newton's equation is used to determine the force acting on a body due to its acceleration.

Mohr's circle is a graphical representation of the stress state in a material under different loading conditions.
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The equation t = C + σ tan φ is given by -a)Rankineb)Coulombc)Newtond)MohrCorrect answer is option 'B'. Can you explain this answer?
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