Answer / m. velmohan

Active earth pressure: In this case soil is fully active.
i.e., soil is giving the pressure to the wall.

Passive earth pressure: In this case wall is fully active.
i.e., wall is giving the pressure to the soil.

Effect:
Active case: the wall is move away from the earth fill
Passive case: the wall is vice-verse to the active case

Answer / sindhuja priyadarshini

In active state expansion of soil takes place where in passive state contraction of soil takes place.

Answer / sandip

Active earth pressure:
When the wall moves away from the backfill, there is a decrease in the pressure on the wall and this decrease continues untill a minimum value is reaceh after which their is no reduction in the pressre and the value will become constant. This kind of pressure is known as active earth pressure.

Passive earth pressure:
When the wall moves towards the backfill, there is an increase in the pressure on the wall and this increase continues untill a maximum value is reaceh after which their is no increase in the pressre and the value will become constant. This kind of pressure is known as passive earth pressure.
This means that when the wall is about to slip due to lateral thrust from the backfill, a resistive force is applied by the soil in front of the wall.

Answer / bharat kumar yadav

when the wall moves away from the backfill there is a decrease in the pressure on the wall minimum value will become constant is called Active earth pressure

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