Volcano wall explained (with 3D map) (Fagradalsfjall, 2021)
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- čas přidán 13. 05. 2021
- You don't need to be able to outrun a lion to avoid being eaten by it. You just gotta run faster than the other guy.
This wall just needs to be slightly higher up than the passage on the other side, where we want the lava to go.
3D model:
sketchfab.com/3d-models/fagra...
Overview image from Visir.is article on the wall:
52.213.54.2/g/20212108179d/herna-vilja-almannavarnir-ekki-missa-hraunid-lengra - Věda a technologie
Somehow CZcams read my mind or my recent searches and put this in my suggestions. For once they hit the nail on the head.
Excellent video.
This is essentially an earthen levee. Lava and water have entirely different characteristics. Lava flows than hardens and repeats building layer after layer until ultimately it reaches the height of the levee and breaches it.
If they can divert it enough to flow into the large lower Meradalir valley it will not get high enough to breach the earthen dam.
@@jima28080 That's assuming the lava doesn't build up and block it's own path down to Meradalir valley at some point. Remember: lava doesn't necessarily take the obvious path down, it takes the path of least resistance. And with layer upon layer hardening on top of itself that path of least resistance can rapidly change. And a four meter pile of dirt isn't much of a resistance against thousands and thousands of cubic meters of liquid rock pushing onward. That said, it probably won't hurt to try.
Water. Vestmannaeyjar 1973.
Canadian CL-415
Takes on 1,629 US gal in 12 sec.
Lake Kleifarvatn about 40 km roundtrip.
I do not see it holding back Mother Nature.
Like the Spartans at Thermopylae:-) although I hope the construction workers don't die or get hurt at all👏👏👍🤘🤗
Canadair CL-415 water bomber. Takes on 1,620 US gal in 12 sec. Approx 40 km to Lake Kleifarvatn.
Water holds 5 times the BTUs as rock per pound. You just need to get the lava below 1,000° C 1,800° F before it sets up. As the hard surface thickens it breaks into bigger chunks and builds it's own barrier like an ice dam. Just hit a strip across that southern valley near the lava river and keep the lava heading downhill to Meradalir.
Remember Vestmannaeyjar in 1973.
😁👍
A brave effort, but if there is continued lava movement in that direction the tiny dirt pile will be swatted away like a bug
Its a technique that works - the Italians proved it on Etna. The thing with lava is that when it slows as it will when meeting the new wall it cools and solidifies full thickness and if no new hot liquid lava gets in underneath or on top this cooled lava adds hugely to the constructed wall barrier. If there is another way out into another valley as is the case here then that will relieve the pressure from all the new stuff pouring out the volcano and become the only route.
Hopefully it will work, I wonder if they thought of digging a deep ditch as well that the lava can flow in it.
czcams.com/video/zbsEWj5qpD4/video.html&ab_channel=JerrysTravelsJerrysTravels
The place they want the lava to flow is down into Meradalir. Hard to do work there, since that where the lava is _already_ going.
@@wwoods66 Thank you I appreciate your input as I was not sure what they were doing by building a wall there
@@Industrialitis thanks for that link, the film was very interesting.
well instead of building a wall to divert it, they also dig trenches to where they want it to move to. Only thing they can do i guess
4 meters don't sound much.
I think the other way is lower anyway so those 4 Meter might be sufficient. If not just make it 8 or 12m. If thats not enough, well shit happens^^
I wonder why the Vikings were so able to dominate for 350 years -- just because they had superior boats, and superior sailing, adventurous spirits and adaptable flexible fighting techniques, and adaptable thinking and responsiveness--against the concrete thinking of cultures, set in their ways, that didn't evolve as quickly ? Asking for a friend -- ?
Alternatively, you might drop a few JDAMs at the northeast base of the volcano and open a new rout to Meradalir.
Isn't it towards the sea that are gonna stop? I would prefer letting it going to the sea. Who knows! It might build a bridge to Scotland!
The issue is that towards the sea there's also a road, power lines and fiber optic cables that the lava would destroy, which is why they're building this wall.
Yeah, toward the sea. Passing by highways and electricity and internet infrastructure.
Tired of the naysayers ..
This will not do anything
No chans mot lava sorry
Nope. Aint ganna work.
I think it's useless.