This study investigates the lateral behavior of pile foundations socketed into bedrocks using 3D finite difference analysis. The lateral load-displacement curve, pile deflection, and bending moment distribution were obtained for different bedrock depths between 3 and 20 m. It was discovered that bedrocks that have a depth of 7 m (7D) or less influence the lateral behavior of the pile. The p-y curves were collected at depths of 2.0–4.5 m, and the effect of the bedrock on the curves was evaluated. It was observed that the p-y curves were significantly affected by the material properties of the bedrock if the rock is located in close proximity (within 3D), but the effect is diminished if the p-y curves were 3.5 m (3.5D) or farther from the bedrock.
This paper presents the effect of bedrock depth on the lateral behavior of monopiles in terms of load-displacement curve at pile head, displacement and moment along the pile. Finite difference analysis program, FLAC3D, was adopted to create a 1-m diameter monopile embedded into sands. The bedrock depth was varied from 5 m to 30 m from ground surface. In this study, it was observed that the lateral behavior of monopile was significantly affected when the bed is as shallow as 5 m deep; the differences were negligible for other cases with depth greater than 10 m.
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