Soil Mechanics and Foundation
Terzaghi’s theory of one dimensional consolidation assumes

Water and soil particles are incompressible
Soil is homogeneous and fully saturated
All listed here
Deformation of the soil, is entirely due to change in volume

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Soil Mechanics and Foundation
The admixture of coarser particles like sand or silt to clay causes

decrease in liquid limit and increase in plasticity index
decrease in liquid limit and no change in plasticity index
increase in both liquid limit and plasticity index
decrease in both liquid limit and plasticity index

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Soil Mechanics and Foundation
Quick sand is a

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

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Soil Mechanics and Foundation
Within the consolidation process of a saturated clay

both neutral pressure and effective pressure decrease
a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant
both neutral pressure and effective pressure increase
a gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant

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