J. Dolson wrote:
> 3. The soil is heavy clay.
> 1. I have several 40 foot lengths of 4" diameter aluminum irrigation pipe.
> If they were to be filled with cement and dropped five feet into the
> ground
> would it be stiff enough to stay vertical?
>
> 2. If that is not feasible, then could I fill say a 15 foot length of pipe
> with cement, drop it 5 feet into the ground, and attach a guy wire to the
Regarding heavy clay soil. We have that here. When it gets
wet, it has a consistency like peanut butter. Self supporting
poles dropped 5 feet in the ground...aren't. 12 inch post holes
filled with concrete don't work either (and this is just for
holding up a 40 meter vertical. You have to have a real tower
base, like 3X3X6 feet in wet clay soil.
Regarding irrigation pipe. It is wonderful when guyed, but cannot
even support itself in the wind. Filling it with unreinforced concrete
is crazy.
The solution to the horse problem is as follows:
Connect 4 horizontal legs at the bottom of the mast at
right angles to the mast and to each other.
These legs are buried just beneath the ground (so horses don't
trip over them). The ends of the legs are secured to the ground
with screw in guy anchors, screwed all the way into the ground
so they are flush. The legs should be 5 to 10 feet long; you'll
have to do the engineering. You'll need gussets where the
legs connect to the mast. This avoids digging holes and filling
them with concrete like a real tower.
Rick N6RK
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