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

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Soil Mechanics and Foundation
If the water table rises upto ground surface, then the

total stress is reduced due to increase in pore water pressure only but effective stress does not change
effective stress is reduced due to decrease in total stress only but pore water pressure does not change
total stress is increased due to decrease in pore water pressure but effective stress does not change
effective stress is reduced due to increase in pore water pressure only but total stress does not change

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Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

greater than both the active earth pressure and passive earth pressure
less than active earth pressure but greater than passive earth pressure
greater than active earth pressure but less than passive earth pressure
less than both the active and passive earth pressures

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