For the safe and economical construction of embankment dams, mechanical behaviour rockfill materials used in dam’s shell must be analyzed. The characterization with specified shear strength is difficult expensive due to presence particles greater than 500 mm diameter. This work investigates feasibility using an extreme gradient boosting (XGBoost) computing paradigm estimate materials. To train ...

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...

detention rockfill dams are accounted as economically efficient structures for flood control, river bed and banks protection, flow diversion, etc. as the hydraulic behavior of these structures, when are used for flood control, is affected by the depth of water in their porous media, there are interests to predict water surface profile through the body of these structures. in this research, we d...