Tents Concrete tents? Not sure.

[Old Gray Mare]

Ok saw these today. They were in a line on top of a wall. They're on Kam Highway heading south toward Honolulu just past the tank farm. They looked like they'd been there a while but not left over WWII construction.

Think smooth, curved top concrete tent sized structures in a line along the top of a retaining wall with no space in between structures. There are rebar loops built into the top of each that may or may not have been used to move them around. The structures became a wall in themselves. The color of the weathered concrete blended into the wall underneath them. If they were solid concrete I doubt the rebar loops or handles wouldn't have been strong enough to use to haul them into place using a chain and crane.

I couldn't see the opposite side of the concrete "tents". From what I did see I was thinking Anderson shelter only done in smooth finished concrete.

It got me thinking. Make a connecting hallway structure of similar material to connect each tent? You'd have have a semi-temperament structure. It could be portable and reconfigurable. Being made of concrete, with proper drainage and plumbing and ventilation it could be buried, not sure to what depth.

Maybe I've been watching too much sifi lately? Was also thinking with 3D printing structures this might be perfect for some interesting applications. This could be something? or maybe just a vivid imagination?

 

[Publius]

I have seen some tents that are inflated with fans and then wetted down and the layers of cement coated fabric harden in 24 hours the structure will last for 10 years this was created by some British collage student's many years ago.
Now they have worked out the details and more advance models are now available and no word on if they will last longer.

 

[WiWatcher]

one of these maybe?

View: https://youtu.be/Vb1pdvvoVoQ

 

[Old Gray Mare]

one of these maybe?

View: https://youtu.be/Vb1pdvvoVoQ

I think this was posted ages ago. What I saw was not this. Think WWII Anderson Shelter or half an oval shaped culver covered with smoothed concrete. Now imagine several of these placed directly next to each other with enclosed ends. The top of each shelter had rebar handles embedded in them.

Anderson shelter at DuckDuckGo

DuckDuckGo. Privacy, Simplified.

duckduckgo.com

or maybe more like this with one narrow curve cut off, a flat bottom added where the curve was. Slice into tent sized lengths and stand up.

https://d323w7klwy72q3.cloudfront.net/i/a/2014/20140625ve/AS9109J.JPG

 

[Old Gray Mare]

Maybe they were left over from WWII. Pause it when it get to the point "some abandon". At about 00:09. That looks like what I saw only with rebar loops on the top that would have allowed a crane to move them. Only I saw what looked like a row lined up with no space between like a wall of cast concrete.

Fair use.
I found something strange on Google Earth and hiked to it!
@joshtheintern

View: https://www.youtube.com/shorts/WPy_0d_ey14

short

 

[kyrsyan]

Sounds like half culverts. I saw them used locally a few years back. I don't know the decision making for choosing between a full round or half. All my brain came up with was that it would provide more bottom area for fluid flow.

Here they were used in an area that had been a massive open storm drain ditch that ran diagonally across multiple lots. Walmart was looking at putting in a neighborhood store there but only if the ditch was enclosed. Those things were massive but I'm sure smaller versions exist somewhere.

Walmart decided to not build. But honestly it has probably been better that the town did it. That ditch was close to the high school and some of the kids don't have the common sense not to jump into a ditch full of flooding storm waters.

 

[Hfcomms]

I’ve seen this on the net before. They build a steel or aluminum superstructure and inside of it they put a big balloon type device and spray shotcrete over it. When it sets they deflate the balloon and when it’s cured have s shelter that will withstand about anything you can throw at it.

Pour a slab and then erect this over it and finish it on the inside. Impervious to wind, small arms fire and due to the arch structure incredibly strong. And it costs a lot less than traditional framing and a lot simpler too if you can find anyone within a reasonable distance to do it.

 

[Old Gray Mare]

I’ve seen this on the net before. They build a steel or aluminum superstructure and inside of it they put a big balloon type device and spray shotcrete over it. When it sets they deflate the balloon and when it’s cured have s shelter that will withstand about anything you can throw at it.

Pour a slab and then erect this over it and finish it on the inside. Impervious to wind, small arms fire and due to the arch structure incredibly strong. And it costs a lot less than traditional framing and a lot simpler too if you can find anyone within a reasonable distance to do it.

Since originally designed as culverts could they safely be covered by about four feet of earth needed to turn them into a fallout or tornado shelter? Could be wrong but I thought that about of four feet of earth was the mass needed for a fallout shelter?

 

[Hfcomms]

When it comes to fallout shelters the name of the game is shielding. Yes, culverts are designed to be covered with earth and make exceptional shelters from a protective factor basis with enough soil over them.

 

[ComCamGuy]

I’ve seen this on the net before. They build a steel or aluminum superstructure and inside of it they put a big balloon type device and spray shotcrete over it. When it sets they deflate the balloon and when it’s cured have s shelter that will withstand about anything you can throw at it.

Pour a slab and then erect this over it and finish it on the inside. Impervious to wind, small arms fire and due to the arch structure incredibly strong. And it costs a lot less than traditional framing and a lot simpler too if you can find anyone within a reasonable distance to do it.

https://monolithicdome.com/