Query: where in South Carolina are you moving too? Just curious parts of
the state are very sandy, others rocky and others still have heavy deposits
of clay. In the very rocky parts getting a hole period could prove
difficult, in the sandy coastal plain sloughing in from the sides of the
hole may very well require the use of a full length form up towards the
middle of the state you are likley to run into clay which would be fine
without the form, for the most part.
As usual more info needed to help!
73's
Dave
wa4emr former denizen of South Carolina and frequent pole setter...
At 04:12 PM 7/14/98 EDT, K7LXC@aol.com wrote:
>
>In a message dated 98-07-14 16:02:12 EDT, brian_smithson@vds.com writes:
>
><< It appears from the pictures I've seen that a big hole is dug, a form is
> built and suspended in the hole. The concrete is poured and the form
> is left in the hole and it is backfilled around the form. I've always heard
> that undesturbed earth is the best thing to support something like this,
> not backfilled.
>
> Yes, undisturbed earth is the preferred situation. The only reason why
>you would need forms in the hole that I'm aware of would be if the walls were
>sloughing into the hole. For sandy or unconsolidated soil, this would be a
>problem but usually isn't for 'normal' soil.
>
> >>What if the form were 'short' - just a couple of feet to square off the
top
> (visible) part and the rest of the concrete was poured against the bare
> undesturbed earth below? Then I'd only be backfilling the top couple of
> feet to neaten it up. Is the chunk so big that it doesn't really
> matter? Seems like a way to make the form smaller and easier to
> handle. >>
>
> Sure, but I would just have 2x4's or similar right at the grade level.
>Then there's no need to backfill the hole at all.
>
> Soil engineers? Geotechnical folks?
>
>Cheers, Steve K7LXC
>
>http://www.championradio.com
>
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