Construction guys: In the old days a tower such as above was probably built on a foundation that was dug and filled with a rule of thumb guesstimation. I'd imagine a hole was built and large stones chucked in to ground level, then building would begin, including mortar.
I may be dead wrong.
But given the probable age of this tower and its lack of tilting, cracking, falling down - it seems to have worked.
So, if a guy wanted to build a few such towers or similar fortifications using rule of thumb, how would he go about it? No pored concrete (or very little). No rebar (or very little).
Second Issue: If a rule of thumb guy wanted to dig a functional trench covered with a light coating of soil, what would the rule of thumb engineer suggest he do?
Anyone?
