Taking into account soil modulus degradation, the expansion of the foundation soil's plastic zone was observed, leading to increased horizontal displacement and bending moment at the pile head and along the pile shaft, which adversely affects the long-term performance of. Taking into account soil modulus degradation, the expansion of the foundation soil's plastic zone was observed, leading to increased horizontal displacement and bending moment at the pile head and along the pile shaft, which adversely affects the long-term performance of. mulations,considering deformation and bearing capacity. The study confirms the reliabilityof the PHC pile foundation as a support structure for heliostats,aimin to offer valuable insights for practical nd deformation characteristics of PHC pile foundations. The deformation f PHC short pile. The photovoltaic module supported by the photovoltaic bracket is relatively light, and the vertical pressure and horizontal thrust are the main stress forms of the support foundation. H-shaped steel piles have become the preferred foundation form due to its high bending stiffness and strong. However, traditional equal cross-section photovoltaic bracket pile foundations require improvements to adapt to the unique challenges of these environments. This paper introduces a new type of photovoltaic bracket pile foundation named the “serpentine pile foundation” based on the principle of. Further analysis examined the failure modes, initial stiffness, and ultimate resistance of offshore PV single piles in sandy soil foundations under varying pile diameters and embedment depths.