Swell pressure, matric suction, and matric suction equivalent for undisturbed expansive clays

Methods of computation for soil heave based on an “equivalent” net normal stress path approach often have built-in assumptions regarding the relationship between in situ matric suction, overburden stress, and swell pressure. The term “matric suction equivalent” has been previously defined as the difference between in situ state of stress projected on the net normal stress plane (represented by swell pressure) and overburden stress. Correlations...