Recent innovations in addition to stringent quality control allows reinforcing cages to be placed up to the full length of a pile when required.

Upon reaching the design depth, a reinforcing cage is introduced, concrete is poured in the borehole and brought up to the required level.

The reinforcing cage is lowered into the bore and concrete is placed by tremie pipe, following which, extraction of the temporary casing takes place.

Once a particular length is reached, a reinforcing cage is lowered into the slurry-filled pit and the pit is filled with concrete from the bottom up using tremie pipes.