Posted Oct 22, 2014, 11:26 PM
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Registered User
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Join Date: Feb 2006
Posts: 469
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Quote:
Originally Posted by RWSMADCONC
The sheeting in the photo from Summersm is to allow excavation to the bottom of the lowest part of the core mat. The core mat has a 10 foot step in it, and will be placed in two pours. The lower portion is at bottom elevation -3.0 ft city datum, the site is at about +10.0 so the excavation needs to be sheeted to keep accessible areas around the deep part of the mat excavation. The bottom of the balance of the mat is at elevation +7.5, top of mat at +14.5, so the cut will be pretty minimal.
The core mat is 7 feet thick, with top of mat at elevation +14.5 except for the low portion of the mat, which is lowered to +4.0 for pits for the high-rise elevators that will service the residential levels above 28.
There are 19-8 foot diameter drilled piers under the core mat, that have bottoms around elevation -42.0 or so. The three that are exposed in Summersm's photo are in the low portion.
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Ok, who let the guy in that knows what he is talking about? I'm not sure we can have this!
Cheers,
G.
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"I don't need the city, it never cared for me." - Neuroticfish.
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