APPARATUS FOR MAKING COMPACTED PILES PARTICULARLY SAND PILES IN FITCHERY GROUND

摘要

An apparatus for forming compacted sand piles the apparatus is provided with a sleeve fitted slidably into the lower portion of a casing pipe and a removable neck portion which moves in the an associated relationship with said sleeve at said casing pipe at the upper position spaced appropriately from the lower end of said casing pipe thereby to be able to form the compacted sand piles.