"pile" means any sheet, column, post, tube or caisson
driven or formed in the ground and also means any pile
known as a "jacked pile", "screw pile", "cast-in-place
pile", "composite pile", "sand pile", "sheet pile",
"bored pile", "caisson pile", and any other form of
pile;
"piling" means any work in connexion with or for the
sinking or forming of a pile in the ground by
hammering, jacking, screwing, augering, boring,
jetting, vibrating, casting or any other means and
also means the driving or sinking of any casing or
tube into the ground to form a well or caisson for
foundation purposes, whether or not the casing or tube
is later extracted;
"place" means any place whether on land or water;
"powered mechanical equipment" means any machine or device
driven by electrical, chemical or thermal energy
including energy transmitted by compressed air, steam,
or hydraulic means a principal function of which is to
produce mechanical movement;
"public place"