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Engineers build subsea tunnels by sinking giant concrete boxes to the seafloor.
Fast. Accurate. Mind-blowing.
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#engineering #megaprojects #science

--- FOOTAGE CREDITS (Educational Fair Use) ---
β€’ Footage courtesy: Independence Seaport Museum (@independenceseaportmuseum) β€” https://www.youtube.com/watch?v=qt41NCQdoG0
Transcript
00:00the massive concrete tunnel segment threatens to snap its steel cables under crushing waves
00:06how do engineers precisely position a 50 000 ton concrete box across miles of open ocean water
00:14common sense says they lower it from giant surface cranes but violent ocean storms would
00:19smash it instantly grout injections permanently stabilize the subterranean foundation beneath
00:25the freshly locked steel concrete joints grout injections permanently stabilize the subterranean
00:32foundation beneath the freshly locked steel concrete joints by the way your website is
00:39your first impression make it unforgettable want high-end creative websites scan the qr dm us link in
00:44bio

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