Discover the two methods to produce stone columns with PTC Ground Improvement equipments
Procédure Avec système d'alimentation par le haut (Top Feed)
When the desired depth is reached, the vibrolance is withdrawn to allow the stones to be released from the ground surface into the hole. The stone feeding is done by stages to allow a better compaction of the entire stone column.Each time the hole is filled with stones, the Vibrolance goes down again to compact them. This process is repeated several times until the stones reach the surface.
Procédure Avec système d'alimentation depuis le fond (Bottom Feed System - BFS)