Construction pile having fluid injection means

Claim 1

A construction pile comprising a hollow cylindrical body; first water spray nozzle means provided at the bottom end of said body and including a plurality of nozzle fittings disposed along the whole periphery of said bottom end, each of said nozzle fittings having a radially inwardly directed nozzle opening and an axially downwardly directed nozzle opening; a water supply means for supplying pressurized water to said first nozzle means including a common manifold ring disposed within said body at the upper side of said nozzle fittings, a plurality of water pipes for connecting said manifold ring with said nozzle fittings respectively, and a water conduit for connecting said manifold ring with a suitable source of pressurized water on the ground; an air nozzle means provided within said body and including at least one tubular ring disposed adjacent the cylindrical inner surface thereof and connected together with the adjacent one by a conduit, each of said rings having a plurality of radially inwardly directed nozzle openings disposed along the whole range of said ring and at angularly spaced relationships; and an air supply conduit passing through said body and connecting the uppermost positioned tubular ring to a source of pressurized air for introducing said pressurized air to said nozzle openings of said upper and lower tubular rings.