Fitting device of the tubes by the thrust, in particular for tubes of small diameter

摘要

A device for installing tubes by the thrust exerted by the tubes impracticable comprises a container of the drilling, arranged in the row of tubes 6, and an emptying station, comprising a drill head, a screw conveyor 15 carrying the earth to the container of the borehole 14 as well as a motor unit 13. An anchoring device 29 is placed on the container of the borehole 14. The device is provided with a jack 31 serving to anchor the container of the borehole 14 in its axial direction and which can be projected perpendicularly to the axial direction, against thrust 34 of the envelope of the working of the tube 7.