+1 vote
in Geotechnical Engineering II by (93.7k points)
The backfill has its top surface ____________

(a) horizontal only

(b) inclined only

(c) both horizontal and inclined

(d) vertical only

I had been asked this question during a job interview.

I need to ask this question from Earth Pressure Introduction in chapter Failure Envelopes & Earth Pressure of Geotechnical Engineering II

1 Answer

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by (243k points)
The correct choice is (c) both horizontal and inclined

Easy explanation: The backfill can have its top surface as a horizontal surface or as an inclined surface. It should be noted that the angle does not exceed the angle of repose of the soil or else it will fail.

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