A Simplified Silty Sand Model

A unified critical state model has been developed for both clean sand and silty using the modified Cam-clay (MCC). The main feature of proposed is a new line equation in e-ln(p) plane that capable handling straight curved test results. With this feature, error calculating plastic volumetric strain is, theory, eliminated. Another crucial transformed stress tensor based on SMP (spatially mobilized plane) criterion, which takes into account proper shear yield failure soil under three-dimensional stresses. Additionally, applies intergranular void ratio with fines influence factor sand. Only eight parameters are required sand, total number twelve needed This not only enhances predictive accuracy granular soils but also broadens applicability to encompass drained undrained analyses.