This looks like a tank chassis under a dump truck. Maybe one of those high-speed artillery tractors?
Anyone recognize the track style?
In this Thursday, June 27, 2013 photo, a truck hauling dirt rides along a berm set up to contain an approximate 22-acre sinkhole in Bayou Corne, La. Neighbors in the town face a wrenching decision after the sinkhole opened up near their homes: Stay or go? (AP Photo/Gerald Herbert)
Yeah its a civilian vehicle although it wouldn't surprise me that much if there wasn't some military force using them for some job or other. They can be fitted with all sorts of equipment apart from the standard dump body, including hydraulic tree spades, drilling rigs, access platforms and small augers.
These crawler dumpers are often seen in marshy areas or more sensitive environments like nature reserves etc where they don't rip op the ground as much as their wheeled counterparts do. The tracks are rubber, although some larger ones may also have a steel core; I'll have to check up on that. Various companies produce them now, Morooka, Takeuchi, Hitachi, Yanmar, Kubota and Yamaguichi to name a few. I'm sure there's a few more!
Could the Tsar Tank be considered a prototype or was it just fate that only one was built?