Method and apparatus for producing a concrete or similar pile in the ground by using a tube of flexible material shielded by a protecting device, preferably a mandrel.

摘要

A device for producing a pile, comprising a sinker tube (1) provided inside with a pipe (2) of flexible material, serving as an envelope for the concrete and tensioned rigidly by a support device (6), is characterised in that the support device (6) comprises a protecting device (8) suspended inside the sinker tube (1) protecting the flexible pipe (2) from contact with the sinker tube (1). The invention makes it possible to facilitate the production of piles. <IMAGE>