Based on the foundation construction of an approach bridge for a coastal wharf project in Zhoushan Port area of Ningbo,this study focuses on the construction challenges of pile foundations for the approach bridge in areas with weak overburden layers,an in-depth study is conducted on the pile stabilization technology of artificial crushed stone bedding layers.By constructing an artificial crushed stone bedding layer,the bearing capacity of the weak foundation can be improved,the stability of the pile foundations can be enhanced，and the safety and reliability of the approach bridge structure can be ensured.The bearing capacity of artificial crushed stone bedding layers with varying thicknesses under different loading conditions is analyzed by combining field tests and numerical simulations,and the feasibility of this process is verified through engineering examples.The results show that the artificial crushed stone bedding layer can effectively improve the bearing capacity of weak foundations,significantly enhance the stability of pile foundations,meet engineering design requirements,and provide valuable references for similar projects.