Living in FL, I am quite familiar with sand. Every QTH I've had in FL had
sand for "soil"
Walls falling down when I was digging were not an issue when I dug for
bases...on the first day. However, if I let the sand sit for a few days so it
began to dry out, the walls did collapse.
I'm not sure if that is what you are talking about. If you dig, and the
walls fall down as you dig, you have some really dry sandy soil....unlike
what I have experienced.
My current station needed LOTS of holes dug on the order of what you have
and in order to shore up the hole walls I constructed frames made of
chipboard (used for sheathing for roofs) and spruce 2 x 4s. I backfilled to
support the walls. and then had the truck come to pour.
The chipboard will soon rot and will be consumed by termites as will the
spruce. Any wood not pressure treated faces the same fate in FL.
Unless you want to go the expense of an engineer, I would suggest this
method. Just to be on the safe side you might make the hole a little larger.
Remember the manufacturers of tower products (yours, Rohn etc) do the CYA.
How many guys out there have more antenna on the tower than Rohn
specifies? From installations I've seen...lots. Rohn also makes
recommendations
of soil etc. I doubt mine would have been standard soil.
Bill K4XS/KH7XS
In a message dated 8/14/2013 2:00:18 A.M. Coordinated Universal Time,
richard@karlquist.com writes:
On 8/13/2013 6:18 PM, john@kk9a.com wrote:
> With no callsign in your email address or post it is difficult to guess
> where you are located. My previous house Illinois had sandy soil, but
it
> was compact and stayed together when I dug holes. If your ground is
like a
> sandbox the 5x5x7 hole is likely insufficient.
>
There was a recent thread about the EZ Way Wonder Ground Post.
Some people said you were supposed to bury it in sand. Are
there "loose sands" and "firm sands"? Sand is sand, right?
I don't know what to assume.
Rick
N6RK
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