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Effective Stress in Soil Video Lecture | Soil Mechanics - Civil Engineering (CE)

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FAQs on Effective Stress in Soil Video Lecture - Soil Mechanics - Civil Engineering (CE)

1. What is effective stress in soil?
Ans. Effective stress in soil is the stress that is carried by the soil skeleton and is responsible for the soil's strength and deformation. It is the difference between the total stress and the pore water pressure.
2. How is effective stress calculated in soil?
Ans. Effective stress in soil can be calculated by subtracting the pore water pressure from the total stress. Mathematically, it can be represented as: Effective stress = Total stress - Pore water pressure.
3. What is the significance of effective stress in civil engineering?
Ans. Effective stress is of great significance in civil engineering as it determines the shear strength and compressibility of soils. It helps in designing and analyzing structures like foundations, retaining walls, and slopes, as it affects the stability and overall behavior of the soil.
4. How does effective stress affect soil behavior?
Ans. Effective stress plays a crucial role in soil behavior. As the effective stress increases, the soil's shear strength also increases, making it more resistant to deformation and failure. It also affects the soil's permeability, consolidation, and settlement characteristics.
5. What factors influence the effective stress in soil?
Ans. Several factors influence the effective stress in soil, including the overburden pressure, pore water pressure, and soil properties such as grain size distribution, soil structure, and soil type. Additionally, external factors like groundwater level, loading conditions, and construction activities can also impact the effective stress in soil.
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