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[TowerTalk] anchor points

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Subject: [TowerTalk] anchor points
From: (Bruce Makas)
Date: Sun, 29 Jun 1997 15:50:15 -0400
It seems to me that it would be easier to drill round holes with a tractor
powered post hole digger for the guy wire anchor points than try and dig
them by hand. If I use the same amount of concrete as spec'd by Rohn for
their rectangular anchor, wouldn't I be OK? For anchor "4b" that would be
.67 yards.

Let's see, 3.14(1)(1)=3.14 sq ft circle and 9cu ft (.67 cu yd) = 6 cubic
feet;  then 6/3.14 = 2 feet .... drill a 24" hole 4 feet deep, gravel on
the bottom, 2 ft of concrete and dirt should make it about equal. Am I close?

By the way has anyone ever calculated "D" on the Rohn "Standard Concrete
Anchors" drawing C620643. I can't find it anywhere on the print.

Thanks in advance, Bruce

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