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Geotechnical Egineering News tagged with [collapse prevention techniques]

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A First Glimpse Of Hanford’s Tunnel 2 As Work Continues To Prevent Another Hazardous Collapse
Jefferson Public Radio   20 December 2018   USA   Washington  
Hanford workers pump grout into a port on Tunnel 2. The tunnel is being sealed up so to lessen the risk of collapse that could endanger workers and the public. CREDIT: ANNA KING/N3
In the middle of Washington’s desert, there’s a tunnel that stretches a third of a mile underground. It’s full of railcars with chemical and radioactive waste. Now, contractors at the Hanford cleanup site are racing to fill the ...
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