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[TowerTalk] big base hole

To: <towertalk@contesting.com>
Subject: [TowerTalk] big base hole
From: jonk@jskent.com (Jonathan Kaplan)
Date: Sun, 22 Apr 2001 15:03:35 -0700
At 03:05 PM 4/22/01 -0600, Chris Adams wrote:

>1.  Digging holes in extremely rocky soil (assume blasting is not
>allowed)
>2.  Methods of determining bedrock strength and attaching a tower base
>to bedrock.

My own experience included using a P.E. He'll give you a design that will fit
your conditions and it will be correct and maybe even save you money, 
especially
if you already have a geology report. In my own case, instead of a 4x4x4 
block, we
used a 17ft x3ft round hole, drilled in 90 minutes by a backhoe with a 
drill attachment.
The PE's fee was more than recouped in digging time and concrete costs 
saved and
I didn't have to worry about all those issues.

73

Jonathan Kaplan KO6XS


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