A questions for any structural engineers

[howdy20012002]

Hello all
first of all - No one worry about getting sued..i don't think I would have much of a chance of sueing someone for some free advice I got from an online forum. and even if I could, I wouldn't. So no worries there.
i do appreciate your inputs.
just to clarify about the structure of the house.
the room is 12 feet across.
beneath this is a crawl space.
the 2 x 10's are actually resting on the perpendicular 2 foot retaining wall at the 6 foot mark or halfway mark, which has the 2 - 12 inch by 12 feet deep pilings.
I am not sure if this was clear.
I don't really see how, being that it is actually resting on the retaining wall in the middle of the room, that there could be any movement at all really.
or am I right out of it?
the concrete wall is 10 inch thick reinforced by lots of rebar.
let me know what u think