Why Nobody Can Fix This $21BN Floating Airport
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- Опубликовано: 2 май 2024
- Kansai Airport in Japan is an engineering marvel but it's sinking and nobody can fix it. How can such a famous construction mega project go so badly wrong? Today we explore this floating airport and how engineers plan to rebuild this landmark to be fully operational again.
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Is this the most flawed airport design in the world?
It is obvious that they miscalculated the height needed to ensure it would not subside or sink... keeping in mind erosion and natural subduction, and not sea-level rise. The only real issue now is to not abandon the airport but to incrementally rebuild over it; thereby, building it higher in sections where it is vitally needed most and gradually over other areas until it is high enough to last another 40 years. To do so, they need to sink under water cement deep enough as anchors to create pillars for support, then add stable topsoil filler to rise the foundation. I am pretty sure the whole project would cost a fraction of the previous build to rise and restabilize the foundation.
Very good! 😉👍
Germany's "new" airport takes that crown since it has never opened after more then almost 14 years of construction. it is 4 years ago since it was supposed to open.
It's man vs nature and costs. They could have over engineered the airport's height if they wanted to but that would cost a lot of $_$.
@@bailvik6390häh? Are you talking about Berlin Brandenburg Airport?
Just to be clear, this airport is NOT floating. It is built on man made islands.
something is amiss with the video author
True... If the airport could float this problem wouldn't exist.
It's tricky. If the airport sinks it means that that soil below liquified. If the soil is liquified then the airport is somehow floating, just not by design.
The solution is rather simple: Ask the Dutch to fix it. The Dutch are specialized in solving exactly this.
My thoughts exactly
You are right in that The Dutch know how to keep the water back, but this airport is in the Pacific. It's not the same, BUT maybe The Dutch(love them ngl) can do it. I think Italy should call them too...Miami Just freaking sink I hate that city with a burning passion
@@markanthony1004bruh what’s your problem with Miami. It’s a great city
I'll sure Japan has already consulted the Dutch and probably from the airport's beginning. They have are a lot of unknown variables to deal with and they will make it work out of necessity.
@@martentrudeau6948no, asia is a copycat continent, they can't innovate or create any new technology on their own. They will need western intelligence to fix this and it's simple to them, but japan is stubborn.
If it was floating airport it would not sink
If its floating the airport would displace water to the weight and its relative volume of sea water.
Floating Objects Often Sink as pressure is applied on them
airport shaking at every wavse passing across
Boats float and sink. That airport is subsiding under its own weight.
Think of it as the set for the movie Waterworld. It sank several times during filming.
Maybe they should just build an airport at the site of the mountains they removed to get the rock to build this sinking mess.
Good one !!
My thought exactly
If japan can build Gundams. Japan can also fix an airport.
And they will.
They already built it that means they can fix it. First, deconstruct all top buildings then strengthen the ground layers under sea. The matter is only how much it cost and how long it take. Also is it worth to fix ?
Yes, fixing it is absolutely totally worth it. It will be expensive for sure. The alternative would be to build another brand new airport over again from nothing, you don't want to go that route. I can compare this to migrating to Mars, instead of fixing all the problems that we have on Earth.
yes it will be worth it. as expensive as this island was to make, the cost of real-estate in Japan is so high and precious it would be more expensive to move it back inland.
I don’t know how someone can think of a project with these many problems to face and then complete it. We really have crazy people in this world who can think big and actually execute the project. Ball of steel is required to complete such a project.
During the built the construction committee decided the less than ideal compaction is enough .
When engineering studies show further compaction to reduce sinking is needed .
So here we are .
Soon they would need a higher sea wall and one of the largest pumping facility .
Winner of the prestigious Sinking Airport award
This is no different than New Orleans, San Francisco, Manhattan, and many other coastal cities that were built and/or expanded atop organic material that decomposes naturally, leaving a void that causes the weighty material above to sink.
Thank you for this video.I never knew this even existed. Was good content, good speeds?Please keep it up with more interesting videos
It’s NOT a ‘floating’ airport👎👎
Underwater airport to the underwater world. 😂
👍👍 for your 👎👎
For some odd reason, I'm thinking about Dubai's Palm Island Project all the way while watching this.
Talking about Kasai, the ingenuity of Japanese engineering is remarkable here. Their method is simple yet works. They basically slide a piece of metal plate into the suspension column to keep the ground levelled.
Don’t worry.they are just making it more higher every few years
So why didn’t they make it a truly floating airport? Surely it would have been considerably cheaper and quicker to build.
At the price of refreshments for everyone I'm surprised it wasn't cheaper to build a new airport on the spot.
But man I just don't get it. In a country prone to earthquakes and typhoon, in an era when we're experiencing rising sea levels, building an airport there was very short sighted
@@noobsfansub they knew that sea lvl will rise the problem was they miscalculated that the weight of the airport will increase the speed of sinking
So if they know it will stop sinking at some point and it can be raised/adjusted with hydraulics, why not just build new and higher concrete walls around it to protect it from water?
ooncrete grout injection? Drive some holes around the perimeter and make a sort of "batub by grouting with hydraulic curing grout?
once that stabilizes everything you can refill the sinking bowl and just do that every decade or so until everything finally hit bedrock or equibrilium
Floating? You can't possibly believe that airport is FLOATING!!
I save beach land daily. I inject slow curing resin that hardens into sandstone.
I flew to that airport last year, I went to visit my family in Hokkaido, then flew to Osaka in order to go to Kyoto via train.
Raise the nearest mountain. Build a conveyor to send the dirt to the airport
Human "ingeniuty" always has a limit, especially when financial limit is one of those limits. Here the problem was assuming the underwater base would "fully compress", How??? It is not confined to a specific area so it wont "fully" compress. If small volumes of foamy water can have its way with beach sand, imagine underwater currents versus any type of sand.
Interesting to learn about this airport I have used a few times. Thanks.
Why didn't they just build a huge keel underneath like a ship?
They will build a replacement in the area nearest to the mainland and use the old islands as a buffer. Thats the only possible solution. Japan routinely replaces its buildings because of substantial and frequent earthquakes. They knew they would have to do this again someday.
their mistake was not making a artificial barrier reef.
It works, but has issues
It's doing its job. The typhoon event was likely higher than the designed level event and the continuous settlement was going to eventually stabilize but the beyond design level typhoon event caused more weight on the dredged material that caused additional settlement. It's a circular problem that the engineers did well to contain and continue to improvise to keep the airport functioning for the past 25 years. It's no easy task but creating more landmass was needed.
If you think you can push back the ocean…try very hard to think again…if you can !!!
Next airport should be built on land, just level mountain tops, If they were able to fill..they can level!
Going to make for interesting pre-take off calculations, with the runways below sea level.
I think it is impossible to simply lift the entire airport. You can only demolish it, heighten the island and rebuild the airport. And all has to be done in stages, because meanwhile the airport has to stay in use, I guess.
The airport buildings were built on jacks as they expected settlement. Just not as much as they're experiencing. So it's basically an infill/stabilization project and what is involved in stabilizing it... If it is even possible, which nobody is certain of.
Potential repurposing of the facilities to a sea planes & flying boat port.
Sunk costs?
If they had built it on pillars set on bedrock and an I-beam substructure it would have worked. Or, if they had floated it on helium balloons from Walmart.
Coupled with the varying rates of sea level rise, this seems like it was KNOWN to be structurally unsound from the beginning. Perhaps a truly FLOATING SUBPLATFORM would be the only lasting solution.
I lived in Nagasaki prefecture and Nagoya city and Japan is UNIQUE in that it refuses to build much on hillsides, unlike cities such as Los Angeles which makes for beautiful nature preserving landscapes, but wastes arable land for cities.
This is why they pre-compress soils with a tall pile of dirt first on major projects like this now.
I’ve used this airport and it’s amazing. Much better than the nightmare at narita.
They can calculate the weight of our Sun, the calculation of the weight of this structure is easily within the ability of engineering students in their 2nd year.
⚔️As a follower of this fascinating airport, since it inception; I’m thrilled to see this latest up date. Maybe ~ 25 ago when it was sinking, but had the jacks on top of the pylons; I felt that could finally be at peace. Until it was reported that the jacking system was maxed out. I did arrive at speculative solution, when there was no online place available for me to comment on it. Resistance: The first was because the clay acts in a similar way that aquifers do. Second was the extra weight being added with more asphalt to keep the airfield above water. One solution is to relieve the area of extra weight. But what do we use to keep its present elevation stable? I thought of a flood plain that raised every rainy season that put water weigh on the top of a concrete sewer infrastructure project I graded. Civil Engineers use wood chips from a local mill, above the sand that’s on top of the pipe, then the excavated native soil was added to the top of the wood chips, to counter the extra seasonal water weight. So, where beneath the airfield do we put this replacement, or what else besides pneumatic balloon materials filled with ~ air, is used? There’s always under the pinning procedure, to replace, the removed materials. Removal of the surface in a cylinder shape like the manholes used for infrastructure pipes maintenance, dug to a allowable depth, then added the above suggestion for replacement; that is done continually throughout the surface, could relieve enough weight/ pressure. My idea has also come from a Star Trek series, that when crews were faces with an alien invasion force, that increased their offensive power each time, the crew increased their level of defences. Finally, when it was decided to back off the defensive tactics, then so, did the alien’s force. Good luck. Thanks for the update. 🛡️
Obviously pumping water deep below the airport won’t help, probably hurt. Sometimes this can help in areas where sinking is partly due to groundwater / petroleum has been pumped out over the years. Given possible liquefaction of the clay, it would have to below anyway.
It easy to fix fillup to 100m above the sea
Last I went to Japan some one month ago, I first landed at Kansai International Airport. To think that the airport I landed in was sinking...
You know the Bible talks of a parable of the unwise building their house upon the sand but the wise building upon the rock, it metamorphic but also rings true the real world as well.
Bullshit. 😂
@@user-lg5df8br7d Says the idiot who rarely has so much as glanced at a Bible.
This man made island has been sinking since the day it was built. Filling in artificial islands isn’t a good idea.
O Those Crazy Japanese ..... PH....
Floating airport? Come on!
It is not floating, I thought it was floating like a boat. The other problem this airport has, is Godzilla stomping around sometime.
Japan needs to build a new airport before the ocean rises to a depth that floods Kansai, making it impossible for planes to use the airport. They can't stop the ocean from rising, and they can't afford to keep spending billions of dollars trying to stop the inevitable drowning of the airport.
Tokyo is not a city. It is a prefecture or state with multiple cities. Whereas Oosaka is a city.
Thats a LOT of Hecters!
The title is misleading, it is not a floating structure. And no, it cannot be fixed. The more weight added to the structure, at the very bottom of the structure the soil will be pushed aside and it will simply sink further. It is doomed.
It's not bloody floating
Maybe joey can buy them a new one
They expected it would sink and has the solution for it, only that the sinking rate is faster so they have to work faster and cost more.
Actually, the've stoped the sinking with 999 steel pilings. This has been so successful they're going to build another island,
Floating airport the engineering modern marvel will end up as a big mistake....no?
WALLS AND PUMPS thats all i gotta say
Not an engineering marvel it more like a nightmare
The ocean is claiming every shores around the world.
Rising global sea levels will also be an issue
Man made it, only Man can fix it!
..what do you expect? animals and/or plants to fix the airport?
Is the airport floating, or is it sinking? Kind of hard to have it both ways, yes?
Apparently the narrator doesn’t know what the “floating” means. It’s not floating. It has not drifted off the coast of California.
If it's on an island, it isn't floating. Duh.
Why does the Title describe this as *"Floating"* since these are islands? Silly clickbait.
Just put a water tight wall all around it....
I remember landing there shortly after it opened.
Coming in for landing, looking out the window you feel like you're going to land in the ocean. You're so low over the water then at the last second there's the runway.
I guess the Dutch were not involved in creating this land from water.
Is there hope? Even the islands stop sinking, the sea level will rise due to climate change. Right?
Dubai has no problems with water and planes
🤣I say to "hector" with the whole damn sinking mess...whatever a "hector" is 😛
"Hector" is the guy whom built the airport! 🤣
@@timmied8461 Lol !! poor Hector better find a bigass mountain to fill in that bigass sink hole 🤣
Good puns, good puns.
there's a way to minimise the sinking rate of the island airport . . . concentrated air pressure at temperatures not exceeding 74°C . . .
I figured at this point it would of been known that artificial islands will never be the permanent place they want.SO now not just screwing yourselves but the people who actually pay for it.
The artificial islands will become permanent, eventually; once the settling stops. It just sank farther and faster than engineers expected. This airport will eventually be fine, but major renovations to keep it operating must continue until the sinking stops.
Right, so it can't be fixed because.. it can't be fixed?
planet same coral maybe it will be land again
The seismic activity was always going to destroy this airport. It's should have been a no-brainer. It was always going to be a matter of time before the breakup began.
"Despite the sinkage problem, the airport proved to be quite resilient!" Despite getting ripped open by the iceberg, the Titanic held up well!
For the Japanese government to construct an airport where they are constantly at odds with nature, they just have too much money and too many nutty engineers.
Another case of the government "experts" failing it's population.
China does, they turned it down. Because the Chinese didn't want to sing "American Pie" and the SKs don't know either🤣
You can't fool mother natures
They fixed 2 craters made by the Yanks, this will be peanuts to fix!
China built a military base on a Chinese built island. What a shame to hope for typhoons
🛸🛸✈✈🚀🚀
Its called contingency planning. They dont got it
Maybe I have an idea of how to stop the sinking. How can I create contact with the right people?
what a waste of money and resources. Dubai is facing the same issue with so much waste to create to only be destroyed. all coastal cities in the world will be decimated from rising sea levels, flooding and earthquakes. a small rise in global sea levels has massive effects on flooding. 1 inch of rise can shift tides to several feet. People keep talking about the year 2100 but in reality its already happening now and the flooding is getting worse every year. Rapid escalation of global weather crisis and spending trillions of dollars holding water back isn't the answer. Holding water back is temporary for relocation and its a major financial burden waste of resources. Do your research on flooding the past 60 years because thats how long i have been watching the world change. Change is happening much much faster than they are saying. I see the devastation around the world already. You all need to relocate to 200 feet above sea level for future generations to be sustainable.
We love Japanese
Everybody knows it is not floating...
Can't build on land because Japan doesn't have eminent domain.
Waste of 10 minutes. This was a 2 minute video, it settled faster than expect no end in sight.
Could have just built it on land.
Strictly speaking, it's not built in an "ocean." The surrounding sea is Osaka Bay, part of the Seto Inland Sea, not part of Pacific Ocean.
Raise the steel walls corner to corner below Airport from seabed till it touches to under surface of airport.
Fill this cornered regions with High density extremely thick foam .
Side walls prevent foam spreading to ocean.
Foam raises Airport evenlyfrom seabed.
Allow water escape at clearance near seabed as foam expand it displaces water.
When foam is expanding make sure it is expanding within cubical form. Making it like Foam bricks supporting Airport.
Side walls shall never allow foam to escape.
It shall maintain uplifting Airport upward and sinking would stop.
Also if Airport raises to initial limit then anchors could be realigned to initial first mark position.
This is how one can surely stop Airport sinking.
Hope your goodself would pass this comment. To Japan Authority of Airports.
built too low？
It was built because theres no land
3:08 "Japan is a relatively large country" Um. What?
Wat a worst of money
Good post
Its not floating