| Summary: | In an urban environment, such as Singapore, having excavation of slope close to an existing pile is common. When such excavation occurs, existing piles may be damaged. In this study, a pile is first assumed to be present, and excavation of slope occurs adjacent to the pile. This study provides a better understanding of the deflection and the bending moment of the piles due to the construction of the slope.To carry out this study, finite element analysis have been carried out using the geotechnical software, Plaxis 3D. The Mohr-Coulomb Soil Model is used to model the soil. The effects of parameters, such as different diameters of the pile, different excavation depths and different distance of piles away from slopes were simulated to determine pile performance. The main conclusion of the study are the following: 1. The stiffer the pile, the effect of slope excavation will have on the pile performance will be reduced. 2. Increasing the depth of excavated slope results in larger soil movement. 3. Increase in soil movement also results in the increase of the magnitude of maximum pile bending moment and increase in pile lateral displacement. 4. As the angle of slope decreases, the magnitude of maximum pile bending moment and pile lateral displacement decreases. 5. The effect the slope has on the pile performance decreases, as the pile is further away from the slope.
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