Compression device for introducing pipe strings in soil, has abutment portions supported on roller carriage, which are provided for receiving the driving force equivalent to the driving shaft

摘要

The compression device has L-shaped abutment portions (21) and grip ring (20) supported on roller carriage (19). The abutment portions are provided for receiving the driving force equivalent to the driving shaft. The tube axis (2) is set corresponding to the driving shaft.