In a certain large-scale offshore artificial island reclamation project, the quay walls around the island use caisson foundations. Foundation treatment of the underwater silt layer is currently being carried out, and dynamic compaction trial compaction was recently conducted. The tamper does not disengage from the hook, and fishing boats are used to assist in measuring the settlement per blow. Construction is quite difficult, the compaction energy loss is significant, and the compaction points tend to deviate under the influence of wind and waves offshore; measuring the settlement per blow is also rather difficult. The key question is: how should the artificial foundation be tested after compaction? I would appreciate guidance from experts! What foundation treatment methods are typically used in similar projects?