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Wednesday, 25 July 2018

How Engineers Stabilize Tunnels So They're Not Constantly Collapsing On Us


How Engineers Stabilize Tunnels So They're Not Constantly Collapsing On Us
A clever demonstration that illustrates how simple reinforcement is used to prevent collapse of rock tunnels.

July 25, 2018 at 01:51PM
via Digg https://ift.tt/2LmDbas

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