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

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Soil Mechanics and Foundation
The shear strength of a soil

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

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