The original state-dependent fractional stress-dilatancy (FSD) equation for soils is developed based on the critical state lines (CSLs) with linear form. However, experimental evidences showed that CSLs of soil in p ′ –q and e–p planes could be both nonlinear as well due to significant material degradation. This note aims propose a unified FSD arbitrary types CSLs. Detailed derivations are prov...

to investigate the saturation induced collapse deformation behavior of rockfill material, a set of large-scale triaxial tests were conducted in saturated and dry-saturated conditions. specimens were tested under various confining pressures. for dry-saturated tests, specimens were sheared in various stress levels. results of all dry saturated tests indicate a sudden reduction in the specimen vol...

The parameters of the constitutive models used in design rockfill dams are associated with a high degree uncertainty. This occurs because comprised numerous zones, each different soil materials, and it is not feasible to extract materials from such structures accurately ascertain their behavior or respective parameters. general approach involves laboratory tests using small material samples emp...

Pumped storage power station (PSPS) is an important clean energy project that plays role in ensuring the economical, safe, and stable operation of systems alleviating contradiction peak load regulation. Deformation analysis built under construction PSPS dam was process design operation, which great significance to ensure safe hydraulic structures reservoir site. Nevertheless, there were many pa...