Kelly,
Wonder not. The answer is with great difficulty. I was a construction manager
in another life, and, during a major corporate cost-cutting move, head office
engineering came out with this spread footing design for our large 48x100+
canopies which employed 6-8 column footings. I immediately called to ask why
the change. The answer was: It uses less concrete and reduces cost. When I
pointed out the labor costs involved in hand digging the bottom of the hole,
not to mention the cost of shoring up the hole to meet OSHA requirements in the
event of a cave-in, the specs were quickly changed back to a 5' square hole,
same depth. Result: More concrete, significantly less labor and overall cost.
If your XYL likes the nice small footprint, form the hole with plywood and one
bys to get the narrower square above grade.
73, Bob W7BJ
Can someone explain to me how a Pad & Pier Tower Foundation hole is
dug? I had never seen a Pad & Pier Foundation Spec until this weekend
and after seeing it I couldn't help but wonder how you would dig such
a hole.
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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