In need of a definition 1

[Zambo]

I am looking for a definition, but need some substantiation (a quote from a text book or other source)

Is a raft foundation a structure supported directly by the underlying soil or can it also include a foundation supported by piles?

Any help appreciated.

 

[Zambo]

Thank you for all the thoughts on this. We are no longer working on this project, hopefully this will not affect future projects we are bidding for in Vietnam.