A device for the extraction of the piles downhill, in particular, of profiles h.

摘要

P the invention relates to a device for the purpose of progressively extract of the piles sunk, in particular, of the profiles. the device of the invention comprises a tightening device 1 intended to hold the pipe 9 which is connected, via a universal joint 5, to a drilling tube 6, which can be moved upwards and downwards by means of a machine of the extraction of the tubes, which is commercially available 14. / p & & p & the device of the invention is used to extract the drilling tubes after without having to resort to a hydraulic presses. / p