Device for prestressing a micropile intended to support a foundation and micropile thus prestressed.

摘要

The device comprises a tube (5) able to be placed in the foundation around said upper part of the frame and to be sealed to the foundation, means (8-14) for temporarily exerting compression on the frame (1 ) in the tube (5) and means (15, 17) for introducing into the tube, around the compressed reinforcement, a grout for sealing the micropile to the tube. BR/ The invention applies in particular to the micropile used as an element for the recovery of existing buildings and structures.