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Effective stress in a soil is the stress carried by the
  • a)
    Soil mass as a whole
  • b)
    Pore water present in the soil
  • c)
    Air present in the voids
  • d)
    Solids present in the soil mass
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Effective stress in a soil is the stress carried by thea)Soil mass as...
Pore water present in the soil
Effective stress is the force at contact particles of soil but divided by total area. The contact area is very less between the particles here. It can not be obtained practically but we can calculate the effective stress by measuring total stress and pore water pressure.
Hence, the correct option is (B)
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Most Upvoted Answer
Effective stress in a soil is the stress carried by thea)Soil mass as...
Explanation:

Effective stress is defined as the difference between the total stress and the pore water pressure in a soil mass. It is the stress that is carried by the solid particles in the soil.

Pore water pressure in soil:

Pore water pressure is the pressure exerted by the water present in the voids or pores of the soil. It is an important factor in determining the stability and strength of the soil.

Relationship between effective stress and pore water pressure:

The effective stress in a soil is directly proportional to the amount of pore water pressure present in the soil. As the pore water pressure increases, the effective stress decreases. This is because the pore water pressure exerts an upward force on the soil particles which reduces the amount of force the soil particles can carry.

Importance of effective stress:

The effective stress is an important factor in determining the shear strength of the soil. It is also important in determining the settlement characteristics of the soil.

Conclusion:

In conclusion, the effective stress in a soil is the stress carried by the solid particles in the soil and is directly proportional to the amount of pore water pressure present in the soil. It is an important factor in determining the stability and strength of the soil.
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Effective stress in a soil is the stress carried by thea)Soil mass as a wholeb)Pore water present in the soilc)Air present in the voidsd)Solids present in the soil massCorrect answer is option 'B'. Can you explain this answer?
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