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RE: Underground shelter
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: Underground shelter
- From: "Joseph R. Grill" <vveng(--nospam--at)cableone.net>
- Date: Fri, 9 Jul 2010 22:37:35 -0700
Yes, I am getting some information gathered up little by
little. Not a big project, but kind of interesting. I haven’t met the
client. I am subbing to an engineer in another state that I have known for
some time. He has made the contacts and is doing all the front end stuff and
for now contact with the architect. I’m just crunching numbers and will put
together the drawings and details. But from what I hear the client wants an
underground shelter in case of some catastrophe whatever that may be.
Joseph R. Grill, PE
Verde Valley Engineering, PLLC
From: Mark Johnson
Sent: Friday, July 09, 2010 7:52 PM
Subject: Re: Underground shelter
I can't help directly, but there must be tons of information out there.
Houses that were 90% buried were popular in the late 70's. Also, I
can't resist asking, what is the motivation for this?
--- On Fri, 7/9/10, Joseph R. Grill <vveng(--nospam--at)cableone.net>
From: Joseph R. Grill <vveng(--nospam--at)cableone.net>
Subject: Underground shelter
Date: Friday, July 9, 2010, 11:51 AM
have been ask to do a design for an underground shelter. For now I am
doing some preliminary calculations. The shelter is basically a large
concrete box structure 26’x54’ and about 10’ high. It will be
constructed in an open excavation and then backfilled. The depth will
be such that there will be 10’ of fill over the top of the structure.
There will be an architect and I believe a mechanical engineer involved for
the HVAC system. I have some questions for all those of you out
has been discussed. At this point I would suspect it will take place
over the roof of the structure and along the side walls probably at the
base. I will pitch to top of the roof slab to aid in dewatering.
This morning I thought that a saturated soil condition may develop over the
top of the structure. I am not sure how deep a saturated condition
would develop, but at this point there is not a geotechnical engineer
involved. I would like to find some “general” values for various soils
in a saturated condition as I don’t have any myself in my library. Does
anyone out there have some general values for saturated soil weights that I
might use for some preliminary designs? Also for lateral pressures?
to save a little time for now. So thanks,
R. Grill, PE
Valley Engineering, PLLC