State of the Art on Combined Pile Raft Foundation

In recent years, the demand of high-rise buildings has increased significantly. For high-rise buildings, pile raft foundation is proved as the most economic and efficient foundation. But in seismically active regions for better safety and durability, it is significant to have a knowledge of dynamic characteristics of piled raft. With the use of pile raft foundation, risk of sudden collapse of these buildings is also controlled. In addition to this, total and differential settlement is also reduced in comparison to unpiled raft and conventional group foundation. To investigate the effect of piled raft under dynamic loading, the relevant available literature is critically reviewed. From the review, it is concluded that pile head fixity has a considerable influence on load sharing mechanism between individual components and less influence on settlement.