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China: New bridge collapses in just months after opening (www.abc.net.au)

submitted 1 day ago by Hotznplotzn@lemmy.sdf.org to c/world@quokk.au

7 comments fedilink hide all child comments

cross-posted from: https://lemmy.sdf.org/post/45538232

Part of a recently-opened bridge collapsed in China's southwestern province of Sichuan along a national highway linking the country's heartland with Tibet on Tuesday (Nov 11), local authorities said, but there were no reports of casualties.

[...]

Construction of the bridge finished earlier this year, according to a video posted by the contractor Sichuan Road & Bridge Group on social media.

There is no estimated timeline for the reopening of the highway, local authorities said, as reported by China Daily.

The bridge is located near Shuangjiangkou hydropower project. The South China Morning Post reported earlier that the project, which will be the world’s tallest dam when completed, began storing water on May 1.

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[–] MachineFab812@discuss.tchncs.de 5 points 1 day ago* (last edited 1 day ago) (2 children)

So ... um ... I've never seen a bridge survive a mountain falling onto it. Have you? Did they build the mountain too, or am I missing something else?

Honestly, a lot more of the bridge survived than I would have expected, and oh yeah, they saw this coming; It closed days before.

[–] Geobloke@aussie.zone 4 points 1 day ago (1 children)

Well you'd generally do a fairly hefty geotechnical survey that would call this risk not and mitigate it.

I mean it could be a 1 in 100 year event. Feels unlikely that it would occur within months of opening though

[–] MachineFab812@discuss.tchncs.de 2 points 23 hours ago (1 children)

Feels unlikely that it would happen within months(much more than that, since the start of construction) of a massive construction effort that involved forcefully and repeatedly vibrating large masses to settle and compact the road surfaces, adding tonnes of concrete, and letting heavy vehicles pass through at-speed on a slope that never saw such traffic before?

Ya don't say? By your logic, the regular inspections that caught the cracks would have been absolutely unnecessary.

[–] Geobloke@aussie.zone 1 points 17 hours ago

How does my logic say inspections are unnecessary?

[–] Hotznplotzn@lemmy.sdf.org 1 points 1 day ago (2 children)

@MachineFab812@discuss.tchncs.de

In addition to what has already been said by @Geoblock in this thread, your comment misses some important points here. They saw this coming as closed days before? - Well, yeah, the bridge was closed after cracks appeared on nearby slopes and roads, and shifts were seen in the terrain of the mountain ... How is this possible? What went wrong in the tests so that this bridge could be built at all?

[–] cassandrafatigue@lemmy.dbzer0.com 2 points 9 hours ago

They made a fuckup, caught it, and mitigated the risk to human life and well-being. A little work and some building materials wasted, but shit happens.

Read 'Cadillac desert'. Tell me how that happens, and still hasn't been addressed.

[–] MachineFab812@discuss.tchncs.de 2 points 23 hours ago

What went wrong, with an entire mountain you say?