Cumulative Degradation Laws of Coupled Bearing Characteristics between High-Piled Wharves and Foundations under Cyclic Loading

With high-piled wharves in port engineering facing long-term cyclic loading challenges, studying the cumulative degradation laws of pile-soil system bearing characteristics becomes critical for engineering safety. Through model tests and numerical simulations, this paper systematically investigates the degradation mechanisms of coupled bearing characteristics between high-piled wharves and foundations under cyclic loading. Static/dynamic triaxial tests reveal the influence of load amplitude and cycle count on the strength weakening of pile-surrounding soil. Numerical simulations clarify the coupling mechanism of load transfer paths and soil response, as well as bearing capacity degradation mechanisms.