Vibrator assembly for creating stone columns, and method for creating stone columns

A vibrator assembly, comprising:

• a silo pipe with a longitudinal axis and with a first end and a second end;
• a vibrator unit, which is coupled mechanically to the silo pipe;
• an introduction arrangement, which opens out into the silo pipe at the first end and is designed to accommodate material and direct it into the silo pipe;
• and
• a supply unit, which is designed to deliver material into the introduction arrangement of the vibrator assembly, wherein the supply unit is arranged on the silo pipe or on the introduction arrangement at least such that it can move parallel to the longitudinal axis of the silo pipe.

A method for operating a vibrator assembly having a silo pipe with a longitudinal axis and with a first end and a second end, having a vibrator unit coupled mechanically to the silo pipe, and having an introduction arrangement that opens out into the silo pipe at the first end and is designed to accommodate material and direct it into the silo pipe, wherein the silo pipe has at least two separate channels running from the first end to the second end and parallel to the longitudinal axis, the method comprising:

• placing the silo pipe on an underlying surface;
• creating a drill hole by movement of the silo pipe cyclically up and down at least on the underlying surface or in the drill hole;
• and
• supplying the silo pipe, by way of the supply unit, with material for filling the drill hole, wherein the movements of the supply unit along the silo pipe are controlled independently of the movements of the silo pipe.