Back in the early 80's there was a community built underground using ferrocement, I visited it at that time. It is near Denton, Texas. It was featured in several magazines but beyond that I can't help, except to say it can and has been done. I have also seen them built with remesh attached to the walls by driving rebar into the soil to hold the remesh and then using gunnite to cover the walls, which is basic swimming pool technology.
on 11/7/04 9:00 AM, permaculture-request@lists.ibiblio.org at
permaculture-request@lists.ibiblio.org wrote:
Message: 3
Date: Sat, 6 Nov 2004 18:18:01 -0800 (PST)
From: Paul Wheaton <paul@richsoil.com>
Subject: Re: [permaculture] Source for Hobbit hole construct...
To: permaculture <permaculture@lists.ibiblio.org>
Message-ID: <20041107021801.39779.qmail@web13811.mail.yahoo.com>
Content-Type: text/plain; charset=us-ascii
I thought of that, but thought it would get plenty expensive. But your site
makes a case
for something pretty thin. Hmmmmm ....
So how thin could I get away with? And, would I need to create some sort of
ridge to
support the weight of the earth above it?
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