Our doomsday underground bunker from mini bricks can save us from any apocalypse, but will our bunker under the home survive our Dam Breach Experiment?
It's an interesting video but a bit lame as an accurate depiction. Gives a representation of the risks, but if you're stupid enough to build your house and shelter thus then Darwin was right
Here’s a challenge for you. Try to replicate an underground scenario that’s more urban. Incorporate a pvc tube that holds a subway train, and add underground structures like beams for basements and hallways, kind of like NYC. That would be interesting to see.
Interesting but unrealistic. The underground structure would be made of reinforced concrete not loose blocks like you have. Loose blocks would not take the earth pressures, especially when it rains. I understand you want to make a spectacular video to "get views" with everything collapsing. But with a realistic underground structure made of waterproof concrete and tanking, what you are likely to get is flotation of the basement. It could be later breached by water infiltration due to stress cracking or overturning of the structure. That's the real life end to the basement if properly constructed. Not so good to watch though!
Doesn't really matter, same results, the water would just enter at the first opening either a vent, Crack, or door. If it doesn't how much air do you have before suffocating? Bunkers are not built for floods!
@@jamesahoffman Yes the bunker would be doomed, but there wouldn't be a spectacular collapse like this which is done for views. The loose blocks it was built of would not even hold back earth pressures. The most likely outcome would be flotation of the chamber and overturning with water entering mostly from the top.
RIP to the (figurine) people that stood their ground. This was their land. Their life. Their home. And they were more than willing to go down with it. You don’t see this kind of bravery everyday.
All your experiments have the same problem: water seeps into the sand. Use garden soil and waterproof it with clay. If you want to simulate real terrain, without finishing or artificial waterproofing, look for sand or soil with smaller grains. Remember that the models are on a smaller scale than reality, so the grains of sand need to be smaller. Otherwise, it would be the same as building on a pebble pile.
i'm a civil engineer. I think your model dam doesn't mimic how a typical earth dam works and fails. In a typical earth dam, there is a thick layer of impermeable of material, e.g. clay, and water can't run from one side of the dam to another side. The impermeable layer core is sandwiched with thick layers of rock...
Thank you! Also, it's illegal to build a property on a damn like this, for safety reasons-from what I know, and considering the fact there are 'trees' and 'plants' their roots + organic matter should be able to hold soil/sand together to a certain amount.
Okay, after watching this, there's absolutely NO way I'm ever building a doomsday bunker underneath a house built on a hill made of thinly packed beach sand.
No way I'm building a doomsday bunker. What's the point of surviving a catastrophic event that few " survive" ? To witness the horrible pain and suffering? No thanks. Never understood that thinking 🤔
There are two things I learned from this. 1) tsunamis do alot more damage than I thought 2) if a tsunami doesn’t destroy your home you could end up with a beach front property
If you always use sand, surely it's always going to end the same way... any kid who's tried to block a stream at the beach with a sand dam will tell you it will inevitably fail.
That shift that caused the bunker structure to move would have probably damaged any ladders for upward exit. That would suck in a real life scenario, to say the least.
Well you could tread water while the shaft down floods. You'd probably die due to hypothermia, etc. but unless the entire house collapses before the shaft floods, you might be able to make an escape
This was fun to watch. Now I'm thinking more sandbox games (no pun intended) need occasional flooding and earthquakes that would temporarily or permanently shape the landscape of the game.
I feel like I understand the spirit of the experiment, but as many have pointed out, I feel like the science could use some work. You'd have to take into account the different layers of soil and substrates that make up actual ground taking into account composition, density, and any seismic activity (if any) in the past. Also, a dam burst, or flood would likely be more violent and less directly impacting on the face of terrain the way it is depicted here (again, I understand the constraints and the spirit of the exercise). It would be tough to build this to scale with a water-tight cutaway to simulate how it would actually work out in a real-world scenario. Also, the lack of mortar/sealant on the blocks that lead down to the cavern where the shelter is housed would also have to be taken into account as well as any bracing/shoring up to strengthen the walls as they go down. Overall though, a neat experiment.
did you ever seen how a flowing water destroyes a floodbank? how it breaks througt it or dig at its base? this is a force of nature compared only with a tornado or huricane. i saw shallow water pushed by the wind, how it flooded my town, destroy floodbanks and houses. water in a flood moves concret houses, destroy wooden ones and washes out mortar from between bricks. it is fucking terryfying. you could watch some actual flood videos and would not understand it.
@@enekoredondo2462 Also feelings have everything to do with science. If scientists didn't feel as though something would work, they would never attempt, and nothing would be discovered from said attempt.
Id love to see a setup similar to this but having a camera inside of the tiny house underground, so when you cut back to it you can see the water start to flow in and rise. Kindof giving us a firsthand view of the horror from inside of it.
For those of you telling him how to properly build a damn, do you think anyone would watch that? NOTHING would happen! This is fun and relaxing to watch. I enjoy watching the different builds failing slowly from different angles. It's like watching the sandcastles my family built at the beach this week get washed away by the tide.
I have a doctorate in structural engineering and I can say without any doubt that this model mimics a real life scenario. We need to really watch this video over and over to learn from it so that nothing like this happens ever again.
I have a suggestion for a future dam: You should make multiple dams in a row and each one is different. For example, maybe one is entirely made out of bricks.
This was too much fun to watch, i especially loved the part where the water flowed through the bunker and took out the entire hill - satisfying to say the least!
This lasted longer than I expected even though the initial failure started quickly. Unfortunately, that waterproof cutaway deserves most of the credit there. It held this thing better than it would be by itself.
I think this model fully explains that if you live in the flood zone of a dam you probably shouldn't build a underground structure to escape the flooding.
1) In real life, it is not loosely packed sand that homes are built on. 2) There is no invisible wall holding the water in a concentrated area. 3) Because there is no invisible wall, water runs through path of least resistance so water level will not get that high. 4) Damn homes are usually not built so damn close to the damn dam. If they do, they are some damn idiots. And finally, 5) “I’m your dam guide Arnie. Please do not wonder off the dam tour. Take all the dam pictures you want. Are there any dam questions? Yeah! Where can I get some damn bait!?” 😂 classic!
I seem to remember a saying about building something on sand.. it really sounds like a terrible idea and this shows one reason why. I mean seriously who would build a bunker IRL in sand!?
@@KingOfDams I would assume they would build it in where there are harder materials like sandstone and not loose sand like this. The Egyptians built tombs in the desert in the mountains maybe try looking up what they did and why they are still intact today.
The music made this whole video feel like watching a movie where the main protagonists know the earth is about to be destroyed and there is no way of preventing it. So everyone resigns to their fate lol
That was neat. Thankfully, most people know not to build on top of a sand dune. The underground bunker turned out to be a death trap. At least the people up top could try to swim to safety.
The dam usually always collapses when it is completely soaked. It is possible that the water could come to the top without the dam collapsing, if there was a drainage channel inside the dam?
Yes.. There is a structure called spillway, to spill the water before water elavation came to the top of embankment.. Some of the dams also has a channel inside the dam called conduit channel, to avoid the breaking of the dam, or to flushing out the sediment of the dam
If it's an earthen dam, which this appears to represent, the internal core could be something akin to rammed earth rather than just loose sand. I'd bet that'd hold up longer. The underground bunker might also maintain integrity for longer. Gradual seepage would occur with time, however. Rammed earth is not water proof. Technically, neither are most types of concrete.
would it be possible for you to put a thin darker layer ( darker sand or other material) to demonstrate the subsidence that causes the initial cracking on top in this type of set up?
This is why we don’t have basements down here in Texas within an hour away from the Gulf of Mexico. If hurricane season isn’t bad enough, built-in swimming pools and the shifting of the earth already compromises the integrity of our homes’ and streets foundations. A basement would be the final nail in our coffins.
I love this a lot, I wish there could be lights that would flicker when it starts to flood just for cool effects that would be cool but idk if that would be possible, but either way great content!!
RU-vid suggests on the basis of algorithm. There's Destiny as well. Events like, to whom we met, where we finally get located for livelihood instead of where we wanted to, to whom we get married, etc. The good & bad things happening in Life are part of destiny, every person has his own. And if you really wondered why this is on recommendation, the point is, its actually coming, so be prepared. Have tangible Gold & Silver, building bunker/shelter, learning to grow crops, self defence, independency, etc. etc. Collapse of petro-dollar/paper monetary system would be the reason. Many geo-political situations/conflicts are side reasons/smoke and mirrors.
This was extremely enlightening yes you can hide under ground just make sure it's still way way above sea level at its deepest point. Also a powerful hydraulic ram for your escape from debree that may have fallen onto the top of your escape hatch!!!!! Cause maybe your really strong but a car is really heavy!!!!!
when i was a kid i play this from soil but i used much stronger like mud and with stone and to make it more real to protect the house or anything beyond the wall that i create, but thanks to your video it reminds me my childhood memories
These are really enjoyable to watch, definitely would like to see some more videos featuring the same situation but with different materials to see what makes it more resistant to structural failure.
There are alot of factors involved with such a test giving much insight on how things would react in certain environments. Under this particular test, this assumes the dam failure occurs in such a way that the water sweeps across the hill, which is where the realism of this experiment in my opinion ends as this assumes the water leaking of flooding from or through the dam has no where to go. Let's talk about the hill for a moment, Climate Change through the different seasons comes with it occasional rain, and possibly even a raining storm. This test assumes the dirt upon which makes up the hill has NEVER been touched by water it's entire existence. Unless your vegetation surrounding your property is literally tall plastic structures resembling trees, which takes more work and effort than literally just having trees, then you know plants make use of this thing called "roots" and through these roots they absorb nutrients and seek deeper and deeper into the ground in such a way that the roots almost literally hold large clumps of the dirt they're roots seek through together. I suppose the lamp posts run on solar panels.... The realtor who sold you the house may be legally liable for the failure, or lack of, a stable foundation for the house. i do not know the legal matters involved but i'm sure building and safety violations do not end with the foundation. Yes i know this is a "model". The person living in this house is possibly very wealthy and the "problem" would had been solved before any damage would occur; Or, the inhabitants of the house (large family or not) would had been able to organize gathering their stuff and leaving before any damage could occur. This video has earned the rating: Propaganda, scaring people with bad science.
Everyone is saying sand is the problem, is not. Not entirely anyway. The angle at which the sand comes to a rest once it is underneath the water is the ideal angle to build your dam. Dams are not underwater walls, they are wedges with a small portion extending above the surface. The issue is not water-proofing your structure, the issue is the shape. In your scenario here, the sand begins to settle into the ideal shape, which erodes the structural integrity of the portion above water, and it collapses under it's own weight.
When you see cracks in your garden like that, you know it's time to run! Happened in Norway not so long ago because the oversatured earth on top of the rocks slides off at a certain point when the tensions get too high.
This reminds me of something... OH YEAH! “Everyone then who hears these words of mine and does them will be like a wise man who built his house on the rock. And the rain fell, and the floods came, and the winds blew and beat on that house, but it did not fall, because it had been founded on the rock. And everyone who hears these words of mine and does not do them will be like a foolish man who built his house on the sand. And the rain fell, and the floods came, and the winds blew and beat against that house, and it fell, and great was the fall of it.”
First off, I gotta say that these videos are always super cool to watch. I always really enjoy seeing how the water slowly eats at the dam until it inevitably breaks through. That said, it does always bug me a bit that the dams seem to be made of fairly loose-packed sand rather than something like soil or clay, which would be far less likely to fail. Would be very interested to see one that actually holds itself together.
