Mechanical behavior of piled raft foundation in sand subjected to static horizontal load

Piled raft foundations have been recognized as an economical foundation system with the combined effects of rafts and piles. However, the proportion of vertical load carried by the raft and piles, and the effects on the behavior of foundations subjected to horizontal loads, have not been well understood. In order to discuss the effect of the proportion of vertical load carried by the raft and piles, and the moment loads on the behavior of horizontally loaded piled raft foundations, vertical and horizontal loading tests were carried out on piled raft models and their components ( pile group and raft models) in dry Toyoura sand using a geotechnical centrifuge.