ABRASIVE SUPPLIER OF WATERJET EXCAVATION SYSTEM

摘要

The present invention relates to a system using a water jet. Disclosed is the tunnel excavation system using a water jet which includes a screw installed under an abrasive tank and transferring an abrasive in one direction; an electric motor which rotates the screw; and an air pump which presses the abrasive discharged through the screw to supply the abrasive to a water jet nozzle. The present invention includes an air gap generation process whereby an air gap is formed along a part. According to the present invention, the abrasive can be uniformly provided.