[TowerTalk] Crank-up base

Grant Saviers grants2 at pacbell.net
Thu May 1 00:32:19 EDT 2014


Your engineer can design a spread base that handles the load.  More 
concrete, wider, but about 3' deep as a guess.  It is an alternative I 
considered for elevated guy anchors.

Grant KZ1W

On 4/30/2014 5:20 PM, Mike Reublin NF4L wrote:
> I'm negotiating to get the base for my HG70-HD dug and poured. I have a high water table, soil tends toward sandy, and an engineer said he would be happier if the hole were 10' deep rather than the 7.5' called for in the manual.
>
> The concrete guys I'm talking to want to line the hole with plywood to prevent collapse. One guy who does a lot of big sign installations says he does it regularly, and there would be no stability issues.
>
> I've read several times the pour needs to be into undisturbed soil, no backfill, altho that's not in the manual.
>
> What are the facts?
>
> 73, Mike NF4L
>
>
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