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Re: Counterfort Retaining Walls

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David-
The spacing would be related to the aspect ratio of the height of the wall to span between counterforts.  If they are too far apart, the wall acts more like a cantilever wall.  Too close and you lose the economy of the wall.  I usually try for a height to span ratio of from 0.5 to 1.0.
Regards, 
Bill Cain, S.E.
Berkeley CA
 
 
-----Original Message-----
From: M. David Finley, P.E., P.A. <davidfinley(--nospam--at)bizsea.rr.com>
To: Seaint(--nospam--at)Seaint.Org <seaint(--nospam--at)seaint.org>
Sent: Wed, 28 Sep 2005 09:49:53 -0400
Subject: Counterfort Retaining Walls

Is there a general rule of thumb for the length and spacing of counterforts
on a counterfort retaining walls?

David Finley
M. David Finley, P.E., P.A.
2086 SW Main Boulevard - Suite 111
Lake City, FL  32025
386-752-6400