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Author Topic: Underground real estate boom - Doomsday shelters  (Read 9547 times)

noproblemo2

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Underground real estate boom - Doomsday shelters
« on: March 29, 2011, 10:53:05 AM »
Underground real estate boom - Doomsday shelters

http://www.youtube.com/watch?v=VUvNdwS2vK8&feature=uploademail

Samsara

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Re: Underground real estate boom - Doomsday shelters
« Reply #1 on: April 13, 2011, 09:15:45 PM »
The company featured on this video is the one building our shelter community

Yowbarb

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Re: Underground real estate boom - Doomsday shelters
« Reply #2 on: April 13, 2011, 10:32:18 PM »
The company featured on this video is the one building our shelter community

Hello again, Samsara.
 ;)
Yowbarb

Yowbarb

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Re: Underground real estate boom - Doomsday shelters
« Reply #3 on: April 13, 2011, 10:32:45 PM »
Underground real estate boom - Doomsday shelters

http://www.youtube.com/watch?v=VUvNdwS2vK8&feature=uploademail


This is good to know, thanks BajaSusan,
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bk

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Re: Underground real estate boom - Doomsday shelters
« Reply #4 on: April 20, 2011, 01:29:44 PM »
Some Questions about steel containers

1) What do they cost? 20', 40', or larger.

2) If you buried one and covered it with 3" of concrete then waited for that to dry and covered with 3 more inches of concrete would you have to reinforce the inside 1st, or would the 1st pour of concrete act as the reinforcement?

3) Do the doors open out or in? I would hate to get stuck.

4) If air tight how long would air last if under water? (1 to 6 people)



 

noproblemo2

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Re: Underground real estate boom - Doomsday shelters
« Reply #5 on: April 20, 2011, 01:45:37 PM »
Some Questions about steel containers

1) What do they cost? 20', 40', or larger.

2) If you buried one and covered it with 3" of concrete then waited for that to dry and covered with 3 more inches of concrete would you have to reinforce the inside 1st, or would the 1st pour of concrete act as the reinforcement?

3) Do the doors open out or in? I would hate to get stuck.

4) If air tight how long would air last if under water? (1 to 6 people)
bk, here are a couple vids that may help you.
http://www.youtube.com/watch?v=9jZLKUasnso

http://www.youtube.com/watch?v=A3EAJex1RVo


bk

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Re: Underground real estate boom - Doomsday shelters
« Reply #6 on: April 20, 2011, 02:54:40 PM »
 Susan,
                     Thanks for the vids some questions answered.

bk

noproblemo2

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Re: Underground real estate boom - Doomsday shelters
« Reply #7 on: April 20, 2011, 03:02:47 PM »
Susan,
                     Thanks for the vids some questions answered.

bk
You're welcome bk

Yowbarb

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Re: Underground real estate boom - Doomsday shelters
« Reply #8 on: April 20, 2011, 10:57:53 PM »
Some Questions about steel containers

1) What do they cost? 20', 40', or larger.

2) If you buried one and covered it with 3" of concrete then waited for that to dry and covered with 3 more inches of concrete would you have to reinforce the inside 1st, or would the 1st pour of concrete act as the reinforcement?

3) Do the doors open out or in? I would hate to get stuck.

4) If air tight how long would air last if under water? (1 to 6 people)

Will be trying to answer this in stages... more than one post.

I am not a construction expert but my understanding is the inside would be reinforced first. all around the top and bottom walls and forming a "T" in the center (my opinion) would strengthen it a lot.

The structure does not have to be buried. Some people very uncomfortable at the thought of being buried. If it could be planned right I personally would want it to be at least partially buried. There are powerful digging tools which would need a power source. I recommend any group have one of these in order to get out if any problem.
If set down onto the reinforced concrete foundation and secured that would help. There are videos showing creating a reinforced wall outside. Not necessarily touching the steel walls - perhaps some wiggle room.

I had an idea to strengthen the position further using steel cables.
My plan is to put it crossing on top like a "T" and fastened at the T point and fastened at the bottom. A small post set down into the hardening concrete, with an apparatus to thread the cable into.

As it shows in some videos there has to be a pump system.

Not an expert on ventilation etc. I have thought about constructing a tall pipe with an apparatus you could pull shut in the event of some flooding.

If no way to convert CO2 into O2 or to bring in fresh air a group could not survive long underground or underwater.

Out of the blue someone in my family came up with some ideas on a piping system attached to a helium balloon device in the event of a major flood situation it could be released up to the surface he also had an idea of a floating solar panel on the surface. I told him to send me his ideas. It's not worked out ... he thought of some pretty interesting stuff.
We had been talking about domes, steel containers etc. Well I hope this helps a little...



« Last Edit: April 20, 2011, 11:12:34 PM by Yowbarb »

Yowbarb

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Re: Underground real estate boom - Doomsday shelters
« Reply #9 on: April 20, 2011, 11:10:32 PM »
PS what I want is a submarine hatch - type door on the top of whatever shelter it is.
If it all ends up under water the group would have to put on their lines, facemasks or gear and take their float raft and oars and go out the hatch and up to the surface, assuming it is just a few feet. I have no idea the physics of trying to open the darned hatch door once it is underwater. Once out, not even sure how easy it would be to shut the hatch. Anyone who is an expert on this - the physics of water pressure, etc. feel free to step in and post something. With references.
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VillageIdiot

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Re: Underground real estate boom - Doomsday shelters
« Reply #10 on: April 21, 2011, 06:28:50 AM »
Something to strongly consider with regard to any underground shelter is to have a minimum of 2 exits.  A primary and secondary exit should exist in the event one of the exits is unable to be opened (i.e. heavy debris, soil, etc. blocking one of the doors).
Live long and prosper!

1969quartz0

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Re: Underground real estate boom - Doomsday shelters
« Reply #11 on: April 21, 2011, 07:17:36 AM »
Yowbarb two ways I can think that might work have the door open inward you would have to be careful it will have a lot of pressure on it shallow water only, or have two doors in the exit tube large enough for all the people in the shelter open a small hole on the outer door let the pressure equalize you would need a spare air or a scuba tank once the pressure is equalized you could open the outer hatch and ascend exhaling as you go up you can damage your lungs going up only a few feet if you do not exhale. very few people would be able to set up a system like that that would work.
« Last Edit: April 21, 2011, 07:19:34 AM by Nathan »

Yowbarb

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Re: Underground real estate boom - Doomsday shelters
« Reply #12 on: April 21, 2011, 07:57:02 AM »
Something to strongly consider with regard to any underground shelter is to have a minimum of 2 exits.  A primary and secondary exit should exist in the event one of the exits is unable to be opened (i.e. heavy debris, soil, etc. blocking one of the doors).

Definitely true!
Yowbarb

Jimfarmer

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Re: Underground real estate boom - Doomsday shelters
« Reply #13 on: April 21, 2011, 08:17:35 AM »
"the physics of trying to open the darned hatch door once it is underwater."

You will not be able to lift the hatch against more than two feet of water, approximately.  You will have to let the interior fill with water up to the inside of the hatch in order to equalize pressure on the two sides of the hatch.  Then you will be able to push the hatch open.
« Last Edit: April 21, 2011, 09:37:58 AM by Jimfarmer »

noproblemo2

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Re: Underground real estate boom - Doomsday shelters
« Reply #14 on: April 21, 2011, 08:23:51 AM »
Also keep in mind you have no idea just how much water may actually be up there once the shelter is sealed, could work against you also in that aspect, could be two feet or two hundred feet.

 

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