Figure 2. Generalized 
v-
v' plot for a sediment that was previously consolidated to
v' =
c1' and further consolidated to
v' =
c2'. At
c2',
v' is reduced and then increased to generate an elastic unload-reload cycle. When
v' is increased beyond
c2', further consolidation occurs and a new, higher yield stress, which approximates
c2', can be estimated by extrapolation of the slopes.
