A Review on the Behaviour of Combined Stone Columns and Pile Foundations in Soft Soils when Placed under Rigid Raft Foundation

In the last few decades, it has been observed that raft foundations are very commonly used as a foundation solution for moderate to high rise structures either by resting on stone columns or piles in soft soils. It is believed that, combining and one system more suitable medium structures. The combined provides superior economical alternative pile, attractive respect ground improvement. This paper presents review of existing studies reported literature two decades about behaviour under piled soil, notably failure mechanism bearing capacity. Also, limited work from concerning performance (pile/stone columns) soil comprised. Furthermore, extensive ongoing research regarding investigation study soils discussed. main goals methodology systems also addressed.