Civil Engineering - GATE Exam Questions - Discussion


When a retaining wall moves away from the backfill, the pressure exerted on the wall is termed as

[A]. passive earth pressure
[B]. swelling pressure
[C]. pore pressure
[D]. active earth pressure

Answer: Option D


No answer description available for this question.

Rathi said: (Feb 6, 2015)  
The pressure is termed as the active earth pressure since the weight of the backfill is responsible for the movement of the wall. If the wall is smooth, the resultant pressure acts normal to the face of the wall.

Bhargava said: (Jun 20, 2016)  
In dams, the face of the wall acts as a pressure.

Sanjay Karodpati said: (Mar 3, 2018)  
Active means work is done. In this case, work is done by earth ie it is pushing the wall out and not vice versa. Hence word active.

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