Pile Foundations

 

 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