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Re: [PSUBS-MAILIST] concrete habitat
Hello Joe,
Yes, what about a 7m diameter concrete sphere - house size...call it habitat,
working base, make it stationary towable, self propelled, ...
Regards Wilfried
>
> The application being discussed here is a decomp chamber is it not? Some
> interesting cyclic loads. Kind of the "last chance" between you and
> eternity,... or the nursing home.
>
> Not an expert here by any means, and this is purely speculation on my part
> but, this "feels" to me like a recipe for unexpected failure if built of
> steel and concrete composite.
>
> I do love the idea of concrete for use as a fixed habitat.
> http://www.jul.com/ If I had a place to do this, I would consider it.
>
> Joe
>
>
>
>
>
> >From: "Øystein Skarholm" <skarholm@gmail.com>
> >Reply-To: personal_submersibles@psubs.org
> >To: personal_submersibles@psubs.org
> >Subject: Re: [PSUBS-MAILIST] concrete-steel diverlockout
> >Date: Wed, 14 Feb 2007 13:03:00 +0100
> >
> >Steel reinforced concrete have no problem taken up tension. A pressure
> >chamber could easily be made from concrete. There a huge condensate
> >tanks in a oil refinery not far from here. These tanks are made of
> >steel reinforced concrete.
> >All other reinforcement types then some sort of steel used for taking
> >up tension is still on the testing stadium.
> >
> >
> >
> >
> >
> >
> >
> >On 2/14/07, Jay K. Jeffries <bottomgun@mindspring.com> wrote:
> >>
> >>
> >>
> >>I didn't say anything about a sat system. If I had the money for a
> >>NuytSuit, wouldn't need a sub as a surface support vessel would be less
> >>expensive to operate and could get more places faster.
> >>
> >>R/J2
> >>
> >>
> >>
> >>
> >>
> >>Respectfully,
> >>
> >>Jay K. Jeffries
> >>
> >>Andros Is., Bahamas
> >>
> >>
> >>
> >>It is the mark of an educated mind to be able to entertain a thought
> >>without
> >>accepting it.
> >>
> >> - Aristotle
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>-----Original Message-----
> >>From: owner-personal_submersibles@psubs.org
> >>[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Øystein
> >>Skarholm
> >>Sent: Wednesday, February 14, 2007 2:56 AM
> >>To: personal_submersibles@psubs.org
> >>Subject: Re: [PSUBS-MAILIST] concrete-steel diverlockout
> >>
> >>
> >>
> >>A complete system for sat diving is a pretty large system. And again
> >>
> >>if you thinking commercial then a submarine can no longer compete
> >>
> >>against a surface vessel. The number of crew during sat diving is
> >>
> >>large. And all of the requirements for backup and rescue is
> >>
> >>tremendous.
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>On 2/14/07, clientes@tolimared.com <clientes@tolimared.com> wrote:
> >>
> >> > A diver lockout is fine in steel ...
> >>
> >> >
> >>
> >> > But... i would sugest a concrete sub big enough to have a full sized
> >>saturation
> >>
> >> > dive facility (made of steel) inside.
> >>
> >> >
> >>
> >> > OR even better that has an advanced ROV or a JIM SUIT on board that
> >>makes
> >>
> >> > saturation dives obsolete and enable you doing work much deeper with
> >>less
> >>risk.
> >>
> >> >
> >>
> >> > Regards,
> >>
> >> > Wilfried
> >>
> >> >
> >>
> >> > > Wilfried,
> >>
> >> > >
> >>
> >> > > While we have been talking about your submarine hull and Troll, these
> >>
> >> > > structures depend on the great compressive strength of concrete.
> >>Concrete
> >>
> >> > > doesn't due well under tension (this is why concrete panels are
> >>pre-stressed
> >>
> >> > > and glass fibers are added to improve concrete's ability to resist
> >>tension
> >>
> >> > > loads). How would you propose using concrete to accommodate
> >>Carsten's
> >>
> >> > > lock-out chamber that is also used for decompression (which would put
> >>the
> >>
> >> > > concrete deco pressure vessel under tensional load when the sub
> >>returns
> >>to
> >>
> >> > > the surface while still maintaining divers at some greater depth of
> >>
> >> > > pressure)?
> >>
> >> > >
> >>
> >> > > R/Jay
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > > Respectfully,
> >>
> >> > >
> >>
> >> > > Jay K. Jeffries
> >>
> >> > >
> >>
> >> > > Andros Is., Bahamas
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > > It is the mark of an educated mind to be able to entertain a thought
> >>without
> >>
> >> > > accepting it.
> >>
> >> > >
> >>
> >> > > - Aristotle
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > > -----Original Message-----
> >>
> >> > > From: owner-personal_submersibles@psubs.org
> >>
> >> > > [mailto:owner-personal_submersibles@psubs.org] On Behalf Of
> >>
> >> > > clientes@tolimared.com
> >>
> >> > > Sent: Tuesday, February 13, 2007 6:29 PM
> >>
> >> > > To: personal_submersibles@psubs.org
> >>
> >> > > Subject: [PSUBS-MAILIST] stress levels in a concrete submarine yacht
> >>hull -
> >>
> >> > > troll
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > > stress levels in a concrete submarine yacht hull - troll
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > > Oystein, this calculation takes my sub to a working depth of 606m -
> >>anyhow i
> >>
> >> > >
> >>
> >> > > would not trust the viewports for such a depth... but this shows that
> >>you
> >>
> >> > > can
> >>
> >> > >
> >>
> >> > > get manageable stresslevels similar to TROLL in a concrete pressure
> >>hull
> >>
> >> > > that
> >>
> >> > >
> >>
> >> > > goes to 606m with a yacht configuration - still not using spheres as
> >>
> >> > > pressure
> >>
> >> > >
> >>
> >> > > hull as in deep diving configuration.
> >>
> >> > >
> >>
> >> > > Wilfried
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> > >
> >>
> >> >
> >>
> >> >
> >>
> >> >
> >>
> >> >
> >>
> >> >
> >>
> >> >
> >>
> >> >
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> >>
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> >>--
> >>
> >>Best Regards
> >>
> >>Øystein Skarholm
> >>
> >>www.ubat.no
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
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> >>
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> >>
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> >>
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> >>
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> >--
> >Best Regards
> >Øystein Skarholm
> >www.ubat.no
> >
> >
> >
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CAN-SPAM Act of 2003. Your email address appears in our database
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If you want to be removed from this mailing list simply click on the
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