Slope failures or even landslides are often triggered by improper excavation in high slope construction. Pre-embedded piles reinforce the slope before excavation. This method is a new way to protect high slopes from failure in cutting. In order to improve piles design in slope pre reinforcement, it is necessary to have a good understanding of the behaviour of piles in excavated slopes. The finite difference code FLAC3D is adopted to analysis the lateral soil pressure acted on the pre embedded piles. The numerical results is analyzed and compared with theoretical calculation results, it is shown that the lateral soil pressure on the piles is related with the soil properties and the stiffness of piles.
