[TowerTalk] Square Hole or Round Hole for Self Supporter?

[K0DAN]

I had a well-driller dig mine, circa 1998, around 4' Diameter by 9' deep. He 
was in and out in a few hours, and the total cost, including the concrete, 
was quite a bit less than the estimates I had for backhoe and framing. The 
structure has survived nicely ever since. YMMV.

73
dan
k0dan

-----Original Message----- 
From: Clay Autery
Sent: January 20, 2018 14:05
To: Richard Thorne ; Towertalk
Subject: Re: [TowerTalk] Square Hole or Round Hole for Self Supporter?

My tower actually calls for a cylindrical hole...
The hole should be engineered to support the load.  Mine is 4 foot diameter 
x 8 foot deep.
Depth is generally more important than area beyond footprint and decent 
overhang.
Please forward the driller info to me...  I haven't found one yet!!!
And as of yet, I haven't found a mchine to rent.


Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Richard Thorne <rthorne at rthorne.net> 
Date: 1/20/18  13:01  (GMT-06:00) To: Towertalk <towertalk at contesting.com> 
Subject: [TowerTalk] Square Hole or Round Hole for Self Supporter?
I have an HDX-589.  I'm in the planning stages for getting the tower
installed.

I ran across a driller yesterday that can drill the 10' deep hole to a
diameter of 7'  (87" to be exact).

We have excellent soil here for self supporting towers, caliche. Digging
by hand is out and using a back hoe would probably make an over size hole.

Is there a reason not to use a cylinder vs a square hole?

Rich - N5ZC
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