[TowerTalk] Tower Guy Anchors

[Michael Tope]

Except for mention on W8JI's website, I haven't seen much mention of 
"bust open" anchors as an option for amateur tower guying:

http://www.w8ji.com/screw_in_guy_anchors.htm

I'd be curious to know if they would be a good choice for very sandy soil.

73, Mike W4EF...........

On 11/8/2013 6:19 PM, john at kk9a.com wrote:
> Some screw anchors are pretty heavy duty and could easily hold an 80' ft
> Rohn 45G tower. I imagine that you need some machinery to properly screw
> them in and the pullout resistance should be tested.  I would not use the
> farm store screw in anchors.
>
> John KK9A
>
>
> To:"'TowerTalk'" <towertalk at contesting.com>
> Subject:Re: [TowerTalk] Tower Guy Anchors
> From:"Edward Sawyer" <SawyerEd at Earthlink.net>
> Date:Fri, 8 Nov 2013 14:06:34 -0500
> List-post:<towertalk at contesting.com">mailto:towertalk at contesting.com>
>
> 70 - 80 feet of 45G using screw anchors in ANY soil would give me the
> willies.
>
>
>
> If its "screw anchor" worthy of a load, then why not use 25G?  If it needs
> 45G then, in my opinion, there is no business considering screw anchors.
> Save your engineering money if its truly a 45G worthy load.
>
>
>
> Ultimately, the proper anchor needs to withstand the pulling expectation of
> the tower guy,  This, in its simplest form, can be a heavy enough piece of
> reinforced concrete that just sitting on the surface provides enough weight
> to accomplish the job.  Usually, the block buried in the ground is much
> smaller and uses soil resistance and soil weight on the top of it to provide
> some of the strength.
>
>
>
> With that said, if I was seeing water filling in my anchor holes at the 18
> inch level, I would assume that there was NO ground strength and either look
> to find rock down deeper to drill into and cement in anchor bolts or use a
> cement block big enough to provide enough strength through weight alone.
>
>
>
> 73
>
>
>
> Ed  N1UR
>
>
>
> Built a lot of towers and an EE but certainly not a Civil/Mechanical PE.
>