Soil Mechanics and Foundation
Rise of water table above the ground surface causes

Equal increase in pore water pressure and total stress
Increase in pore water pressure but decrease in total stress
Equal decrease in pore water pressure and total stress
Decrease in pore water pressure but increase in total stress

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

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