Another option on the mine ---sweeper.

 

If height is an issue, as some areas

won't allow access...

 

'shooting' the chains from ground-level

could be another option.

 

chain itself of course, is designed to

be repaired by maintenance instantly,

once in contact with the explosion.

 

several ways to go about this.

 

 

shoot straight with many chains,

 

shoot one chain and spin the chain

(then device would be vulnerable in all angles)

 

but generally, one with the height

is for open areas, whereas one closer to the ground

level, for more narrower areas.

so shooting straight, 8 meters or so, will suffice,

without spinning the chain....

 

 

just thinking about harder to reach areas....