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Will Hidroituango become the next "Tacoma Narrows newsreel?"
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A giant beer-bottle whistle, quarter-Hz resonance inside a tunnel. What might be the net forces on the stone walls?

tuneles de la represa de Hidroituango
https://www.youtube.com/watch?v=wlTkQawyuMs (May 2018)

Is there any possibility that the oscillating pressures eventually collapse the tunnel?

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5 years ago