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DEEP SILO BASING SYSTEMS
DEEP SILO BASING SYSTEMS
Pages 73-96
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From page 73... ...
These are typified by two main types, the "Sand Silo" and the "Pencil Pusher." Unlike the horizontal systems, the vertical systems are unmanned and would tend to be operated very much like current Minuteman silo systems, with the exception that the deep silos might also be for "dormant" missile storage. In this mode the missile would be essentially "turned off" and would not be activated until egress and launch were required.
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From page 74... ...
After attack, where egress requires operation of the raise borer machine, the silo systems would have the advantage of providing a steady force on the rock face by virtue of their inherent upthrusts, whereas the horizontal exit requires use of a conventional tunnel boring machine with a repetitive "grab and thrust" mechanism. The above is an abbreviated description of the vertical silo deep basing systems.
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From page 75... ...
For example, if you make a vertical deep silo, one could have a quick-response shallow silo at the top. Also, the egress system developed for the vertical silo might be applicable to the Mesa concept, and we believe at this time that these types of concepts should be included in the Air Force deep underground program.
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From page 76... ...
problem, but for a l00-megaton burst in a layered medium and 2,000 feet of porous overburden where we have the equipment below in the 3,000 feet of the Pencil Pusher, the environment is benign compared to that of the MX shelter MAP system. The size we used for preliminary engineering based on that type of environment was, for block motion, l meter at 2,000 feet (which gave us a l3.5-foot lower shaft)
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From page 77... ...
For postattack egress, we believe we can get up in 40 hours if it were all alluvium; 20 hours if we had l,000 feet of undisturbed foamtype or vermiculite concrete -- something of that nature -- plus l,000 feet of earth destructive crater; and l0 hours if it were all undisturbed. Again, there is great uncertainty here.
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From page 78... ...
In the Pencil Pusher, especially if you have a fill at the top of foamed concrete, it is more difficult to get through that stuff if you have to dig it out. So, in all our Pencil Pusher costing, we assumed an auxiliary shaft going down with side drifts so that one could get to the guidance and the interstages for maintenance if you wanted.
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From page 79... ...
. Acquisition plus construction costs (to compare it with the Pencil Pusher, which was $80 million in one case and $ll6 million in the other case)
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From page 80... ...
It was not accepted by the public with all those shelters all over the place, and I think that deep underground basing removes that public interface. It really is just like the ordinary silos, which are accepted.
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From page 81... ...
PARRY: Yes. Vermiculite concrete.
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From page 84... ...
84 i utffi Eel \ a i 2 g C W 9 l3Sa -J r O"1 1 "• *
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From page 86... ...
DEEP VOLCANIC SIN LAYERED ROCK SITi E0 UNCERTAINTIES UNTIL DETERMINED A0UMED FOR EGRE cc BLOCK MOTION 8 B 8 0 N H u.
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From page 87... ...
s/ kp 5 « ,'N \ 1 I , 1 1 1 , , , I iS I I §UJ a |
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