+1 vote
in Geotechnical Engineering II by (93.7k points)
The wedge-shaped portion of the backfill tending to move with the wall is called _______

(a) Wedge fall

(b) Active fall

(c) Failure wedge

(d) None of the mentioned

This question was addressed to me in an online interview.

This key question is from Plastic Equilibrium in Soils : Active and Passive States in portion Failure Envelopes & Earth Pressure of Geotechnical Engineering II

1 Answer

0 votes
by (243k points)
Right choice is (c) Failure wedge

Best explanation: During the active state, the wall moves away from backfill and a certain portion of the backfill in wedged-shaped tend to move which is called a failure wedge.

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