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Discussion Starter · #1 ·
your basic shelter depth should be the height plus dirt cover plus three ft..

so if your shelter is 8.ft tall then the hole is the basic depth of 16.ft plus three foot for add protection ..so a 20.ft depth is how deep the hole should be ..the whole thing of 10.ft to safety was a big think in some of the older books about the weapons blast damage zones..

that way most shelter entances are set at a angle of 90.dregees to keep radiation out of the shelter itself because of the way radiation travels in a saight line ..along with the way the entance to my shelter was turned twice at a 90.dregree angle to help with the fact of the radiation traveling in a saight line path ..

with pea gravel cover up and over the round metal tube style of steel tank shelter to act as the earth arching of the blast shock wave traveling through the earth out from the nuclear weapon going off at ground or air or below ground blast wave ..the pea gravel acts as earth arching support for the unit along with draining water away from the shelter outside area..plus the dirt cover acts as the radiation barrier for it will be stop by the mass thickness of the earth as it goes deeper into the earth along with the thickness of the steel metal shelter

the shelter depth is basicly design to help with the nuclear effects of the weapon and the b.c. part are handle by the shelter filtering system ..

the shelter is also design to flex with the inpact of the traveling shockwave though the ground with haveing some of the outside units in what is called rock cribs with 8."inchs to 10."inchs sized rocks in the crib to help defuze the blast wave shock as it travels through the ground in your area

plus when you design the shelter here a tip unit ..when bring your shelter spetic lines out line and the fresh water line in line ..when it comes to the turns in the entance section or corners areas take a oversized piece of pvc pipe and run them through the pipe inside of just letting them be put into place by a simple hook system for the hook system can tear a hole in the line ..so this way there is no way a hole can be formed on the corner turn of the hose unit ..


remember when digging the hole a few extra feet is worth the cost for it add to the mass shielding effect of the dirt along with the size and shape of the shelter system ..
 

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Discussion Starter · #2 ·
here is what iam talking about in how deep a shelter basic hole must be in the photos it shows the depth and how much earth arching fill is beening put onto the shelter as it beening covered up ..

plus look at the depth and the design of each shelter placement in the ground to help with the blast and shock wave of a full blown nbc warfare.
 

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