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Progress of research on the dilatancy mechanism of soil and the constitutive model for dilatancy of sandy soil

The elastoplastic constitutive model for soil mass based on Rowe's stress-dilatancy theory has been able to well simulate the stress-strain relationship of clayey soil and normally consolidated soil. In recent years, researches have shown that it is not ideal for classical constitutive models for soil mass to simulate the mechanical properties of sandy soil and overconsolidated soil as the effect of dilatancy of soil masses is not considered in these models. Therefore, it is significant to study the dilatancy of soil to establish constitutive models containing dilatancy parameters in real life. Considering the essence of the dilatancy of soil, we summarized the progress of research on the constitutive models for dilatancy of sandy soil.