In a message dated 97-03-07 00:10:21 EST, firstname.lastname@example.org writes:
> At the bottom 12-15" of the
> hole I dug-in such that the bottom dimensions approximate 52" square,
> (actually a somewhat rounded square). In other words, the area in the
> bottom half of the hole is greater than the area in the top half.
> I was thinking the way a dentist drills prior to filling a cavity-he
> enlarges the hole inside the tooth such that the filling will better stay
> in place. Is (was) my thinking corrupt, or does this make sense??? Is
> only "disadvantage" that it requires more cement?
Actually that's a good idea and is used by most engineers and
construction companies. Bell'ing out the bottom of a hole is a good
technique and even Rohn uses tower footings with pedestals at the bottom for
additional stability and strength.
See, you just THOUGHT you were crazy - hi.
73, Steve K7LXC
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