This video shows the versatility of the Zipper truck system. We are able to create tunnels with openings very quickly with no permanent support work.
source/image: Lock Block Ltd.
This arch can be used as a mining reclaim tunnel or storage vault with top access.Zipper Truck System it’s a custom built by Lock Block Ltd that allows masons to erect free-standing tunnels very fast.
The specially designed building blocks with interlocking pegs are held by the arched-rollers of the truck, functioning as a frame. quarter mile of tunnel can be constructed in less than 24 hours and can be used immediately, cutting costs and lengthy periods of curing time.
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The truck is tapered, with the front arch being taller than the tail. As the truck moves forward, the blocks fall and compress. This is very similar to how a zipper works.One of the other cool things about it is that it can be dismantled and re-assembled to be used on another project or moved.
