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Swamp Guy Anchors

Subject: Swamp Guy Anchors
From: Steve_Fraasch@ATK.COM (Steve Fraasch)
Date: Wed Aug 25 14:48:52 1993
I've designed a guy anchor system for my upcoming tower project using A.B. 
Chance Co. 8", 10" double helix "SS" anchors.  I've designed it for a 
retaining force of 20K lbs, the limit where all 3 ea 1/4" EHS guy wires would 
snap.

Does anyone else have experience installing anchors from the A.B. Chance Co?

Specifically, I'm looking for power hand installing equipment.  I've located a 
couple of Kelly Bar PTO trucks, but I must wait for winter when there's enough 
ice to drive on.  The A.B. Chance rep says that hand equipment will work for 
installing torques up to 2.5K ft-lbs; I need only 2K ft-lbs.

If anyone is interested in these anchor systems, you can request the design 
book, "Principles & Applications of Earth Anchors," from A. B. Chance Co., 210 
N. Allen St., Centralia, Mo., 65240-1395, 314-682-5521.
You will immediately see the advantages of needing to dig holes for deadman 
anchors, especially if you're going in wet, inaccessible soil, as I am.  These 
systems are much larger than the small screw anchors that Rohn sells in their 
tower books, and can be used to support up to 100k lb tensions.

Steve, K0SF



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