[TowerTalk] Screw Anchor Question

[Peter Voelpel]

I will certainly avoid srew in anchors in the future.
It just happened to me that my tower collapsed
after 6 hours of continious heavy rain folled by
a storm at 70 miles/hr and a pulled out anchor

www.pbase.com/df3kv/sturmschaden

73
Peter



-----Ursprüngliche Nachricht----- 
Von: "Pete Smith" <n4zr at contesting.com>
An: <towertalk at contesting.com>
Gesendet: Montag, 16. Januar 2006 12:29
Betreff: Re: [TowerTalk] Screw Anchor Question


> The big advantage that poured concrete anchors give you is that they are
at least partially dependent for their effectiveness on sheer dead weight;
my Rohn-spec poured anchors weigh around 2000 lb each.  On the other hand, a
lotm of pretty savvy hams have used screw anchors in permanent installations
without incident.
>
> 73, Pete N4ZR
>
> At 12:08 AM 1/16/2006, k0dan wrote:
> >Well from my recently-related tower adventure of some years ago (Rest In
> >Peace), this is definitely the case. What perturbs me (and this is all
water
> >of the damn dam now) is that there were no warnings or other
implementation
> >notes from either the anchor manufacturer nor the distributor.
Interestingly
> >they did come with suggestion on how to install, and in what kind of
soils,
> >but nothing else. Without other experience or guidance the "amateur" just
> >goes on his merry way, believing he is doing things right.
> >
> >73
> >
> >Dan
> >K0DAN
> >
> >----- Original Message -----
> >From: "Phil Camera" <kb9cry at comcast.net>
> >To: <towertalk at contesting.com>
> >Sent: Sunday, January 15, 2006 6:45 PM
> >Subject: Re: [TowerTalk] Screw Anchor Question
> >
> >
> >> Don't take this personally, but IMHO screw anchors are only to be used
> >> for a temporary installation.
> >> A 70 ft. tower is a sizable structure and needs adequate anchors,
> >> meaning, anchors that have concrete holding them in place.
> >> Yes, you should be concerned about the anchor in question, as well as
> >> the others.
> >> If you get Zero rain, and I mean none, then your anchors may last.
But,
> >> if your location gets any kind of rain, then that soil can become very
> >> soupy and won't hold worth squat.
> >> I'd seriously rethink your installation.  Gd Luck and be safe, Phil
> >KB9CRY
> >>
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