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Re: Retaining Wall Problem

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I came across a product catalog call Super Stud. No, it's not a male enhancement product, it's a temporary steel shoring system. It's like a big erector set. Might do the job...

It's not a 1-time thing, it's something a contractor could re-use, so you may need to find someone who has the setup already.


On Jan 24, 2008 7:14 AM, IRV FRUCHTMAN <ifaeng(--nospam--at)> wrote:
Dear Fellow Engineers:
San Francisco friends asked me about a problem re a
new home they are  building in the city. It will be
located on a steep hill tucked in between two existing
homes and will require excavation and retaining walls.
To minimize construction cost and lost floor space, my
friends' shoring engineer designed a tied-back
retaining wall for the uphill side that also underpins
the uphill neighbor's home foundation. The height of
the retaining wall will vary from 4 to 15 feet. It
uses helical anchors to tie back the wall; these will
also run beneath the neighbor's home. The excavation
is done starting from the top and working downwards in
segments. In each segment steel reinforcing is placed
and shotcrete is sprayed against the exposed dirt.

1. Do you have concerns with this excavation /
retaining wall design?

2. So far the uphill neighbor hasn't agreed to
authorize work under his home; any suggestions on how
to convince him to allow the work?

I'd appreciate your opinions.

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