Assertion: bank | /r/CapableOf | undergo particle erosion
Facets:
value: due to the stones
type: CAUSE
Source sentences:
text: Failure is seen when the bank undergoes particle erosion, due to the stones being too small to resist shear stress, removal of individual stones weakening the overall riprap, the side slope of the bank being too steep for the riprap to resist the displacing forces, or gradation of riprap being too uniform (nothing to fill small spaces).