[TowerTalk] Strength of Screw-in Anchors in Rocky Soil?

[Dubovsky, George]

You might ask Stone Phillips; he was an anchor...

73,
geo - n4ua

> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-
> bounces at contesting.com] On Behalf Of Patrick Barkey
> Sent: Monday, August 13, 2007 1:58 PM
> To: towertalk at contesting.com
> Subject: [TowerTalk] Strength of Screw-in Anchors in Rocky Soil?
> 
> Does anyone have any data or insight about the holding power of screw
> in anchors in rocky soil?  My experience with the big ones (that use
> a power auger to install) in the clay of Indiana was very good.  But
> here the soil is of much poorer quality and full of rocks and
boulders.
> 
> You can still get them in, but I was wondering if I shouldn't trust
them
> as much?
> 
> I am talking about the anchors with a 10-12 inch helix.
> 
>   - Pat
>     N9RV/7 near Missoula, MT
> _______________________________________________
> 
> 
> 
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