[TowerTalk] One anchor Hole is not deep enough to Specs (3 feet versus 6 feet deep)

[n1bkb at aol.com]

 I used Philystran to guy my tower at my previous QTH.When I took everything down/apart when I moved 22-years later, the Philystran guys were as solid & taught as the day I installed them.The stuff is great!
SteveN1BKB
    On Thursday, February 17, 2022, 03:24:19 PM PST, Steve Lott <lottsphoto at gmail.com> wrote:  
 
 Someone asked but I no longer see his question

Hope you're using Philystran for guys,  yes I am
all but the last 60 feet is Philystran
the lower portion is EHS for fire "proofing" of the installation

I am now checking on the availability of a Skid steer with a hydraulic
hammer jack

Steve
*KG5VK*
Tele 318-470-9806
ARRL NTX Section Manager
*Please note: My Out Going Email address is LottsPhoto at Gmail.com*
*KG5VK at ARRL.ORG <KG5VK at ARRL.ORG> is forwarded to my Gmail address*



On Thu, Feb 17, 2022 at 5:12 PM Wes <wes_n7ws at triconet.org> wrote:

> If you can't break up the shale and remove it then why not use it as the
> anchor?  Bore some holes in it, epoxy in some rebar and cast that in
> concrete or
> epoxy in some anchor bolts and bolt in the guy anchor extension.
>
> Wes  N7WS
>
>
> On 2/17/2022 3:49 PM, Steve Lott wrote:
> > My plan is now a Rotating Tower
> > using the K0XG tower Hardware
> >
> > Tower is Rohn 45G
> > 140 feet Tall
> >
> > It will have a KT34XA at 142 feet (short Mast)
> >
> > A Fifteen meter Stack of Three 5 element beams at heights of
> > 52, 82 and 112 feet
> >
> > The Rohn Specs show Guy anchors at 112 feet from the base of the tower
> > However, it was recommended by Richard of K0XG rotating Tower Equipment
> to
> > push those guy anchor points out much longer
> > So, I have chosen 165 feet as the distance to the Guy anchors, Richard
> say
> > this will afford me very good guy clearance on my antennas
> > and an Excel spreadsheet program written by Hal Kennedy N4GG confirms
> this.
> >
> > Here is the kicker.............
> >
> > Once again I have hit Shale Rock in one of my Guy anchor holes
> > and was only able to get to 3 feet zero inches deep versus the specified
> 6
> > feet deep for the anchor holes
> >
> > I had this issue before with my North Guy anchor on my first tower
> > at that time I was only 2 feet deep
> > Back then used the Rotating Hammer drill and the expanding paste and
> gained
> > another 6 inches after 6 weeks of work
> >
> > The solution then was instead of a 1 foot 6 inch pad of concrete in that
> > hole and then back fill the dirt on top of it, I filled the hole to
> surface
> > level with concrete
> > and have had zero issues, with a very heavy loaded on a Rohn 55G tower
> > Those guy anchors are 130 feet per specs on the distance.
> >
> > My question is with the Guy anchors further out (distance) than spec
> > can I get away with filling the less than spec deep hole once again with
> > concrete
> > (versus a 1.5 foot thick pad in the 6 foot deep hole back filled with
> dirt,
> > a three foot deep 6x3 by 3 deep, filled to the ground level with
> concrete)
> >
> > Someone stated that further out guy distance from the base of the tower
> > will actually place much more stress on my guy anchors and therefore my
> > once again plan
> > may not be viable.
> >
> > Everyone's thoughts would be appreciated
> >
> > Steve
> > *KG5VK*
> > Tele 318-470-9806
> > ARRL NTX Section Manager
> > *Please note: My Out Going Email address is LottsPhoto at Gmail.com*
> > *KG5VK at ARRL.ORG <KG5VK at ARRL.ORG> is forwarded to my Gmail address*
> > _______________________________________________
> >
> >
> >
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