Soil Mechanics and Foundation
Quick sand is a

flow condition occurring in both cohesive and cohesionless soils
flow condition occurring in cohesionless soils
type of sand
flow condition occurring in cohesive soils

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Soil Mechanics and Foundation
The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing

effective angle of shearing resistance
cohesion and effective unit weight of soil
effective unit weight of soil and effective angle of shearing resistance
cohesion and effective angle of shearing resistance

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Soil Mechanics and Foundation
The shear strength of a soil

Is directly proportional to the angle of internal friction of the soil
Decreases with decrease in normal stress
Is inversely proportional to the angle of internal friction of the soil
Decreases with increase in normal stress

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