The Influence of the Presence or Absence of Subdivision Plate on the Horizontal Bearing Characteristics of Suction Pile Dam

This study aims to analyze the influence of the subdivision plate on the horizontal bearing characteristics of a suction pile dam using the finite element analysis method, through the method of finite element analysis, under the condition of keeping the relevant parameters of suction pile dam consistent, the subdivision plate is added inside the bucket foundation to study the horizontal bearing capacity characteristics of four bucket foundation configurations: single, 4 buckets, 6 buckets, and 8 buckets. The results reveal that the bearing mode is similar between suction pile dams with and without partitions, but the addition of partitions significantly improves the horizontal bearing capacity. The effect of partitions on improving the horizontal bearing capacity becomes significant with the increase in their number. When the horizontal ultimate bearing capacity is reached, the bearing capacity can be increased by 60.8% at most. With the increase of the number of buckets in the bucket foundation, the earth pressure on the outer side of the passive zone and the inner side of the active zone of the bucket foundation gradually decreases, indicating that the subdivision plate plays a crucial role in distributing the load on the foundation, thereby improving the synergy between the bucket and the ground, improves the synergy degree of the bucket-soil inside the bucket foundation of the suction pile dam, and reduces the extrusion strength between the bucket-soil in the passive zone.