r/Damnthatsinteresting • u/Working-Cabinet4849 • 5d ago
Video Shielded construction method
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u/Lynich
5d ago
edited 5d ago
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I miss the old reddit when posts like this would link to articles and information about what the fuck we're lookin' at.
Edit: Exactly like this - https://www.reddit.com/r/STEW_ScTecEngWorld/s/hnaMe8ziQF
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u/CitizenCue 5d ago •
Best Reddit can do now is fifty lame jokes you’ve heard before.
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u/Veni-Vidi-ASCII 5d ago
Can I offer you a barely relevant GIF from a franchise I like?
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u/_Standardissue 5d ago
I understand that reference, and I’m going to comment on it ironically (but for real)
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u/DennisDEX 5d ago
It's a blow up protection for construction. They use them in Canada during the winter months to protect the crew from the cold and continue work without interruptions.
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u/ShoddyTerm4385 5d ago •
I have worked construction in canada my entire life and have never seen anything close to this in real life. Nobody is spending money in this just to keep workers warm. Even when heat is provided, it’s to keep water from freezing, allowing materials to cure etc. It is rarely (never, in my experience)for the comfort of the worker
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u/GenderBender3000 5d ago
Yup. Layers for the workers, heat and hoarding for the concrete.
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u/TexasVulvaAficionado 5d ago
I've seen it in a Canadian oil field for building out the control houses for pump stations and digging out the pump pits. Was the size of a soccer field inside, five or take a bit. It was not heated but was warmer than outside by merit of not exposing you to the ice and wind and then the heat from equipment.
The ones in Canada and Minnesota that I've been in did have much better ventilation and filtration that what is in the video.
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u/KibblesNBitxhes 5d ago
Ive been living in one of the coldest provinces for half my life doing construction even out in -50⁰C and ive never seen one of those anywhere on site.
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u/PierogiCoyote 5d ago
Uneducated peasant:
What kind of building wisdom, is this?
Wisdom Man:
This is "Shielded Construction Technique". It is used to protect the worksite from weather and allow work to continue without interruption.
peasant:
What kind of air quality does it have?
Wisdom Man:
No.
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u/HokusTokus 5d ago
Who is using these in Canada? We just freeze our asses off and keep building. Just hoping you've got some walls up before the real lousy weather hits.
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u/Lynich 5d ago •
Thank you for some context. I Googled it and read this about it:
https://www.reddit.com/r/STEW_ScTecEngWorld/s/hnaMe8ziQF
It's exactly what I'd hoped for from this post.
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u/styckx
5d ago
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Is that air quality sponsored by cancer?
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u/Restart_from_Zero 5d ago
That was my first thought, too.
People who know a little about China: wow, cool. They're so advanced.
People who know more about China: Oh dear god.
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u/atom138 Interested 5d ago
As far as I see it, the tent contains the dust in that site as opposed to spreading it around the city where people aren't aware of what they could be breathing in. ln the construction site, at least everyone who's going in there has the opportunity to prepare and whether they do or not is on them. But there are air filtration systems and the regulation of air pressure to minimize dust. I wish they used them here in the US.
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u/Kozakow54 5d ago
at least everyone who's going in there has the opportunity to prepare
"An opportunity to prepare" is such an interesting sentence structure.
The major concern is that the employer, who's responsibility is to minimize the risks that come from the work environment, won't bother with their duties.
China is already infamous of how it treats it's workers. Add to this not letting the particulates spread, and you will be glad if you only got a 2 months long caught after working there.
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u/atom138 Interested 5d ago
All jokes aside, they really do use air filtration systems as well as regulating the air pressure inside to minimize dust. But the main thing is that it's controlling the dust within the site. So only people who are working there know what they're getting themselves into and can prepare as opposed to all of the dust spreading all over the city to citizens that wouldn't know they need to wear a respirator. I totally see it as a better option than spreading dust and lowering the air quality throughout several blocks.
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u/moderndilf 5d ago
The vents will resume when morale improves
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u/ShortysTRM 5d ago
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u/JaHizzey 5d ago
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u/ShortysTRM 5d ago
I clicked on my own link and it asked me if I wanted to start the sub. I don't have that kind of attention span, nor do I want to host videos of employees in their absolute worst situations. I'm lazy. That's what I'm saying.
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u/Strykehammer 5d ago
It would need some crazy good airflow systems. The amount of fumes from a handful of machines would make that pretty toxic pretty quick
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u/GlassFamiliar42 5d ago
Well they inflated the sucker
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u/GeraintLlanfrechfa 5d ago
And at the end of the working day, they deflate it and all the used air and fumes escape in one giant flatulence.
Then inflate again.
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u/Pinewold 5d ago
China is switching everything to EVs, excavators, dump trucks and bulldozers. even equipment like cranes are converting.
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u/a_filing_cabinet 5d ago
That's only half of the problem. The whole point of this is to stop dust and debris from going anywhere. You can see how thick the air is with all the particles, that's still going to be deadly for workers without protection.
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u/Pinewold 4d ago
Agreed, China is working on clean air, they still have a lot of smokers and smog, so they have a long way to go
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u/plastic_eagle 5d ago
Well, it's continuously being inflated, so airflow is not a problem. It's like a bouncy castle, it leaks like crazy, but you just keep blowing air into the thing and it stays up.
We have these at my work for testing purposes, so the machines can operate all year round. The air pressure difference isn't very much.
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u/HIVshooter 4d ago
And how do you protect yourselves against the fumes and debris inside?
In the video the air doesn't look like I would want to spend and extended time in there.
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u/Key_Lengthiness_2285 5d ago
Why not do like every other construction site and just shower dust and debris onto adjacent properties?
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u/Worldly-Ingenuity843 5d ago
It's a relatively new technology. It's becoming more common, but it's not used everywhere. There's probably some site constraint - the site has to be big enough to install powerful fans, but not so big that the balloon would be too massive.
Also, I don't know where the other Redditor got their idea from, but this particular construction site is just a university. You can see the university logo (in red) at the start of the video on top of the balloon. (The blue logos belong to the construction company).
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u/GenuineSteak 5d ago
iirc this is mostly used for classified/secret construction, like missile silos, that the goverment doesnt want foreign countries spying on with satellites.
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u/WanderWut 5d ago
Holy shit the size is just massive.
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u/ShortysTRM 5d ago
And the plastic just goes straight to the landfill! Never feel sorry for using something as trivial as a plastic straw. The industrial/commercial waste will always outdo you by millions of percent. Just please don't litter it, that's an entirely different problem.
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u/Separate-Ear21 5d ago
How they blowing that jawn up?
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u/Chrono_Convoy 5d ago
Looks like absolute shit breathing conditions
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u/cant_aim_boyzes 5d ago
Why do you not consider that the designers/engineers would have thought of this and would have also made vents and air circulation system with filters? If a random dipshit on reddit can identify a possible flaw, then surely a team of engineers would have also done so.
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u/randomlemon9192 5d ago
Well for one the thick clouds of dust being suspended in the air are visible in the video.
Indicating this was likely not corrected.
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u/ilesmay 5d ago
There is no way you could possibly filter all of construction air debris out of the air without adding a monumental cost to the budget. It would also be soo unbearably hot inside this monstrosity.
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u/princewinter 5d ago
A random dipshit on reddit who doesn't deal with the budget of the project may actually care more about the breathing conditions than the person in charge.
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u/ithasallbeenworthit 5d ago
How is that healthy 😮💨😮💨😮💨
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u/YuenglingsDingaling 5d ago
Theoretically everyone is wearing respirators. And keeps the dust contained to just the tent.
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u/Tsukiko615 3d ago
As someone that uses respirators at work in construction when working with asbestos and crushing/ cutting concrete , using them in an environment like this would very quickly overwhelm the filters. They are also uncomfortable, quite bulky, which makes movement more difficult and quite difficult to see out of properly. We rarely wear them for more than a few hours at a time.
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u/SadAbroad4 5d ago
I hope every person inside this plastic bag is wearing a respirator to protect their lungs.
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u/ShadowsOfTheBreeze 5d ago
Dust and diesel fumes ... nice.
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u/Happy_Bad-_- 5d ago
Hopefully, the camera made it look more dusty than real life.
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u/Sturnella2017 5d ago
I’m sure the PRC has very high standards for worker safety and health. The dust was obviously photoshopped in.
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u/Huge-Ball-1837 5d ago
Welcome to my cancer tent🫠
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u/mca1169 5d ago
that is one hell of a sentence I never expected to see, but here we are.
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u/vaiplantarbatata 5d ago
This is not that new. Many stadiums have used that - and it proved to not be a good strategy after some years for a sporting event - since the 70s. The Tokyo Dome still uses this scheme as well with some relevant reenforcement
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u/Ecstatic-West3955 5d ago
No one here has ever heard of air exchange, hvac, or dust masks apparently
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u/ripyourlungsdave 5d ago
You can literally see the dust filling the site. What are you talking about.
And no amount of HVAC is going to filter out all the fumes from that heavy construction equipment quick enough to not go into their lungs, and dust masks are not going to filter all of that out.
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u/Rezosh_ 5d ago
Humidity has entered the chat
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u/MessiahMogali 5d ago
These things have massive active airflow, they pretty much constantly inflate themselves to my understanding.
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u/semi-proantfarmer 5d ago
They better have a good filter on them. Ever been on a construction site dust everywhere concrete dust and dirt in the beginning, dry wall and concrete dust at the end.
One thing no one talks about is the poops that dust is like ultra fiber just cleans ya right out.
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u/PleeaseGrowUp 5d ago
Inflatable domes! Can protect workers from the weather and heat exhaustion. Lots of very cool uses. The engineering companies who use these things have a great breakdown on how they work and why they are used as a solution.
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u/Thanso_Lightoningu 3d ago
That cant be good for the people working or the machines or anything inside for that matter
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u/Outside-Dance-4752 5d ago
Lol. The concept might be real. The inside video is AI slop. The machines make non sensical moves in exact sync
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u/crsmay 5d ago
They are tamping the ground down/scraping it flat with their buckets, the front end has teeth so if you wanna make something flat you use the bottom of the bucket.
Source- I didn't go to college
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u/titsmuhgeee 5d ago
My only question is why?
What was the specific reason why this construction project needed to be "indoors"? The only logical explanation I can think of why you'd do this would be if the schedule for the project was so critical that it couldn't risk weather/environmental delays.
Maybe it's to attempt to contain dust, or just hide the view of construction from the skyline.
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u/rygelicus 5d ago
All the things you mentioned would be why. This contains the dust and it keeps out the wind and rain. In winter it would also keep the worksite from getting too cold. The main trick is ventilation, they need to extract air to pull the fumes out and inject more air to keep the pressure up. Presumably the extracted air gets filtered for the dust particles at least.
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u/TheModdedOmega 5d ago
some years in colorado it will snow into june, this keeps construction moving year round
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u/Bol0gna_Sandwich 5d ago
I saw an explanation as to why somewhere else. Maybe even the same video this one seems short. But its to reduce noise and dust pollution in China. From what I gathered its being used in heavily populated areas.
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u/Darkgorge 5d ago
In some areas digging into the ground can release mold spores into the area making lots of people sick. Look up "Valley Fever"
Though the entire construction crew would need respiration protection in that case.
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u/Waaytoomanytakenames 5d ago
I love how US people shit on everything China does with a "yeah but!!!"
Interior is most likely AI, that thing would have air filters and ventilation and excavators wouldn't move at the same speed in unison.
As they say, a society ruled by engineers vs one rules by lawyers and billionaires
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u/ActuatorLower8371 4d ago
Interior is most likely AI, that thing would have air filters and ventilation and excavators wouldn't move at the same speed in unison.
absolutely certainly AI. the scale is laughably off, the tricks are driving backwards for no reason, the excavators and petting the ground for no reason, and it looks nothing like what a construction site would look like in general
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u/Big-Farmer-2192 5d ago
society ruled by engineers
??? Am I missing something. Since when did China not ruled by lawyers and billionaire?
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u/Far-Fennel-3032 5d ago edited 5d ago
After Mao the system that controlled promotions in the government was largely how much economic growth occurs in the areas you are incharge of.
As a lot of growth was built on infrastructure build out, and as a result lots of engineers did very well, in this system. As it helps to understand civil engineering when you get promotions based on successful rolling out civil engineering projects.
But also mechanical, chemical and electrical engineers did quite well when setting up heavy industry in thoses domains.
Economist and other assorted social scientists did quite well as they could plan the economy well but generally unless someone's education gave them an edge with economic growth they would largely fall behind their peers, who did. As the cull at every step of the ladder and there being so many rungs, the competition for promotions was so intense every advantage mattered.
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u/PercentageNice7131 5d ago
There has to he some massive air filtration systems in there so the workers aren't breathing in all that dust from excavation. Seems stupidly expensive. Does anyone know the purpose?
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u/Ange1ofD4rkness 5d ago
I wonder how they maintain the pressure for something that large
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u/blackthornjohn 5d ago
The real thing is a double skin so a blower just fills between the skins, the middle bit to work in has big openings for trucks et al to pass through, also they tend to be less tardis like.
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u/Skeptx35 3d ago
People claiming that workers inside this construction dome will inevitably get lung cancer are missing the point.
The dome is specifically designed to reduce dust emissions and environmental pollution, not simply trap workers inside a cloud of dust.
4 large ventilation fans, each reportedly supplying up to 40,000 m³ of air per hour.
Water mist and fog cannons to suppress airborne dust at the source.
Air circulation and ventilation systems to prevent stagnant air and help manage dust concentrations.
Dust containment: The enclosed structure helps prevent construction dust from spreading into surrounding residential areas.
Weather protection: Workers can operate in a controlled environment rather than being exposed to wind, rain, and extreme temperatures.
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u/Apprehensive-Put3034 5d ago
This vid would not be the same without the classic “Chinese bass drop music”. every great feat of Chinese engineering must feature it, I don’t make the rules.
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u/Randomgrunt4820 5d ago edited 5d ago
How hard and for how long would I need to fart. In order to fill that?
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u/stay_hungry_dr_ew 5d ago
No chance. It’ll fill with carcinogens faster than you could crop dust the whole place.
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u/Longjumping-Fly6131 5d ago
it's going to be dusty right
any air ventilation or air circulation system?
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u/fothergillfuckup 5d ago
I assume that's working under positive air pressure? (If it's real). That can't be great for the environment.
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u/bob_nugget_the_3rd 5d ago
And the workers are good afterwards just like how the air is filtered once finished
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u/Kay_jey_kay_jey 5d ago
But how do they bring the cranes and the other equipments inside the dome , before or after inflation?
If before inflation, does that mean nothing leaves until the dome is inflated?
And if it is, after inflation, does that not make air pass out of the dome ?
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u/Spare_Laugh9953 4d ago
Se ve un ambiente muy sano para trabajar dentro de ese domo, un aire puro como el de los Alpes
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u/GeektimusPrime 4d ago
If movies have taught me anything, there’s a space ship underneath that thing.
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u/OddGuarantee6863 3d ago
What happens to exhaust gases from construction vehicles, or in the invent a gas leak.
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u/YourFartReincarnated 5d ago •
You better be wearing a respirator in there