Abstract: To study the stability of the soft soil with the reinforced straws, this paper uses the numerical simulation method to study the reinforced soft soils. The influence of reinforcements is investigated by analyzing the soil with and without the reinforcement, the reinforcement layers and the reinforcement spacing within the soft soils. The simulation results show that reinforced can change the failure mode of the soft soils from the overall shear failure to the punching failure. The number of reinforcement layers and the reinforcement spacing have less effect on the sliding failure of the reinforced soft soils. Reinforced straw can effectively improve the bearing capacity of the soft soils, which will improve with the increasing o the reinforcement layers. And the smaller the bar spacing, the better the reinforcement effect.

Key words: Straw Reinforcement, Horizontal Reinforcement, Soft Soils, Numerical Simulation.