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[TowerTalk] anchor points

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Subject: [TowerTalk] anchor points
From: (Rick Mainhart)
Date: Sun, 29 Jun 1997 21:28:00 -0400
On Sun, 29 Jun 1997 15:50:15 -0400 Bruce Makas <> writes:
>It seems to me that it would be easier to drill round holes with a 
>powered post hole digger for the guy wire anchor points than try and 
>them by hand. If I use the same amount of concrete as spec'd by Rohn 
>their rectangular anchor, wouldn't I be OK? For anchor "4b" that would 
>.67 yards.
>Let's see, 3.14(1)(1)=3.14 sq ft circle and 9cu ft (.67 cu yd) = 6 

Ah ... a cubic yard is 3 x 3 x 3 or 27 cubic feet.
27*.67= 18.09 cubic feet required (using your figure)
18.09/3.14=5.76 feet depth required for 1 foot diameter;
18.09/6.28=2.88 feet depth required for 2 foot diameter.

Not sure whether I'd try to second guess the engineering.


Rick, WB3EXR

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