There must be a word for it somewhere but I recall that out on the tank ranges at Warcop in the 60's there were a whole bunch of late Churchill Mk7 and 8 gun tanks that were a bit battered about but complete and on Salisbury plain, Sherman, Comet and Cromwells galore.
Then, about 15 years ago, a whole line of about 10 or 12 Sherman and others in all types of configuration including one Churshill recovery tank were uncovered that had been used to protect a bank from collapsing in what is known as Battlesbury bowl. The find was widely reported and a couple of the tanks looked over but later, just pulled onto the ranges as targets. The paint was still there as were the post war registration numbers, such as 12 ZA 36 and the identifiable tactical signs
The problem now is that while many years ago a tank would last for a couple of years being hit with 105 and 120mm solid shot practice ammo. Now, even the biggest Chieftain and Challenger 1's last about 20 minutes with a couple of Javelin hits!