I am also getting these crashes. Apparently it is a Driver compatibility thing. My system crashes randomly every 10 - 100 turns without warning. I get a black screen. I see the regular windows cursor, then the error pops up. I click OK on the message and it CTD's.
_DEVIC
I have been getting the following error:
FGXRenderer11:

resent failed hr=DXGI_ERRORE_REMOVED. Driver failure.
There are a half dozen threads out there that are trying to figure out what the problem is... appears that most of the powers to be are aware of the issue...
Someone found a new BETA driver that says specifically it fixes the Civ V problem but only for NVIDIA 400 500 series
here. So I am not sure if it will help for me since I have an 8800 GT.
Going to give it a try and see what happens.
UPDATE: Tried the new driver. Everything on the computer seemed to work ok. However after a couple of tries it crashed again with the FGXRenderer11:

resent failed hr=DXGI_ERRORE_REMOVED. Driver failure.
UPDATE AGAIN: Tried using just DX9 and had no luck, After starting a new game CTD after just 9 or 10 turns. Didn't get the FGXRenderer11:

resent failed hr=DXGI_ERRORE_REMOVED. Driver failure. error just a straight crash to desktop! Going back to old driver set.