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Re: temp steel

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I don't think so. If you consider the wall as a basement wall, then 3/4" cover criteria, which is
in para 14.3.4(b) doesn't apply.  Granted, this section of the code appears to be written with
building walls in mind and doesn't address retaining walls.

IMHO, you should have two layers of steel.  3" cover where placed against earth, and 1-1/2" cover
at the exterior side.


Mark D. Baker wrote:

> Lew Midlam wrote:
> > Doesn't a 12" thick shotcrete wall need require 2 layers of reinforcement (ACI 318-95, para
> > 14.3.4)?
> >
> > Lew Midlam, PE
> > ======================
> This is a good point although since it is a retaining wall would it not fall under the
> exception for basement walls? One of the criteria for steel placement per ACI is "not less than
> 3/4" from interior surface" so I would interpretate this requirement to be for a wall which is
> not exposed to earth.
> Mark