What is a Pile Raft
The piled raft is a foundation constructed by combining both the piles and a raft foundation. Firstly, the piles are constructed and then the raft is placed combining all the piles
Interaction of the pile, soil, and raft is the key factor considered in designing the piled raft foundation. The efficient use of the interaction leads to end up with the economical design
Otherwise, as discussed in the latter part of this article, could not be an economical construction
Therefore, the following interactions are incorporated into the design
Pile-Soil Interaction
Pile -Pile Interaction
Raft-Soil Interaction
Pile-Raft Interaction
The following factors are known as important to consider when designing of piled raft foundation
Number of piles to be used
Diameter of the piles
Length of the piles
Pile spacing ratio
Location of piles
Stiffness of piles
Stiffness of Raft
Raft dimensions
Soil type and stiffness of the soil
Load distribution over the piled raft
Why Pile Raft
In general, we construct a pile foundation or raft foundations separately to transfer the loads from the superstructure to the ground