DEVICE AND PROCESS FOR EXCAVATING AND BACKFILLING OF SOIL

摘要

The invention relates to a device for digging trenches and refilling them withearth, especially for laying pipes. Said device comprises a self-propelledtravellingmechanism (2), said travelling mechanism supporting a machine frame (4) withan upperstructure. The device also has a boom (6) which is mounted on said machineframe (4)in such a way that it can pivot, and a shovel bucket (16). Said boom hasseveral boomarms (8, 10, 12) which are connected in such a way that they are articulated.The shovelbucket (16) is pivotably mounted at the free end of the boom (6). According totheinvention, a milling/mixing rotor (22) is located on the shovel bucket (16).