The ground here in NW MS is clay and jello-like when saturated until the
summer bakes it. I've used AB Chance 12ft SS150's with double 10" helices
for the two towers here. Probably overkill, but It does take a small skid
loader with a hydraulic drive unit. They have calibrated shear pins on the
drive attachment to verify pullout/drive torque. It's an expensive, albeit
very quick way to get going. Your local foundation company is a good source.
Mike K4EAR
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> Jim Lux
> Sent: Friday, November 08, 2013 5:17 PM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Tower Guy Anchors
>
> On 11/8/13 2:48 PM, Steve Maki wrote:
> > Depends on the soil and the size of the anchor.
> >
> > I've had 200' of 45G guyed for 30 years with *big* screw-in anchors.
> > The soil is heavy clay and gravel mix, and when we installed them
> > there was no doubt that they would not be the weak link in the system.
> > They have never budged.
> >
>
> This is a good point. There are ginormous screw in anchors used for large
> structures.. they come out with a specialized truck that has a big
hydraulic
> motor on a boom to screw them in. I've seen ones that are about 5 feet in
> diameter and with a shank about 15 ft long and several inches in diameter,
> and the guy on the truck said they even come in larger sizes.
>
>
>
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