Soil Mechanics and Foundation
For a loose sand sample and a dense sand sample consolidated to the same effective stress

ultimate strength is same but peak strength of dense sand is greater than that of loose sand
ultimate strength is same but peak
ultimate strength is same and also peak strength is same
ultimate strength is different but peak strength is same

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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

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

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