The rail foundation is critical to the safe and efficient operation of automated container stack yards in port areas. Taking an actual project as example，the advantages and disadvantages of the pile foundation rail beam scheme and the composite foundation rail beam scheme are compared in this paper. For the PHC pile foundation rail beam scheme，the finite element modeling of SAP2000 is used to analyze the stress of the track beam foundation under different combinations of pile diameters，pile spacing and beam sections，and the pile based track beam scheme with the maximum utilization rate of the pile foundation bearing capacity is obtained by comparison and selection.