Thread: CHICAGO | Highrise Projects & Construction, v7
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Old Posted Dec 31, 2021, 2:16 AM
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harryc harryc is offline
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Join Date: Jun 2007
Location: Oak Park, Il
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160 N Elizabeth
Dec 30





Big Pin Piers - concrete is pumped into the hollow bit as it is withdrawn, then the cage is lowered in




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The brace for holding off the cage once it is lowered.
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