Have you ever seen one of these?
A pile driver is a mechanical device used to drive piles (poles) into
soil to provide foundation support for buildings or other structures.
The term is also used in reference to members of the construction crew
that work with pile-driving rigs.
One traditional type of pile driver includes a heavy weight placed
between guides so that it is able to freely slide up and down in a
single line. It is placed upon a pile. The weight is raised, which may
involve the use of hydraulics, steam, diesel, or manual labor. When the
weight reaches its highest point it is then released and smashes on to
the pile in order to drive it into the ground.
To learn more about pile drivers please see below link:
http://en.wikipedia.org/wiki/Pile_driver
And here for the history of pile drivers:
http://piledrivingequipment.weebly.com/history.html
Very interesting (and LOUD) !!!
:o)
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