Q. Failure of a finite slope along a surface that intersects the slope above the toe:

A
Compound failure
B
Base failure
C
Slope failure
D
Toe failure
Solution:
  • Face failure occurs when soil above the toe contains weak stratum. In this case the failure plane intersects the slope above toe.
  • Toe failure is the most common failure in which failure plane passes through toe of slope.
  • Base failure occurs when there is a weak soil strata under the toe and failure plane passes through base of slope.
  • Rotational failure can be seen in finite slopes such as earthen dams, embankments, man-made slopes etc.
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