Development of a Constitutive Model for Indication of Mechanical Behavior of Fiber-Reinforced Cemented Sands

In this research, a model for prediction of mechanical behaviour of fiber-reinforced cemented sands is presented. For this purpose, at first a general plasticity constitutive model for sand soils is selected and the parameters of this model are determined for three samples of triaxial experiments done on different soils. Then it is developed with generalization of existing model based on parameters of fiber-reinforced cemented sands. Through modelling steps, elastic parameters, flow rule and hardening law of base model for fiber-reinforced cemented soils are modified. For evaluating the developed model, the results are compared with results of three samples of triaxial experiments done on fiber-reinforced cemented sands. Finally, the developed model efficiency is confirmed at different confining pressures with different percent of cement and fiber.