Abstract: The anchoring device, for anchoring at least two reinforcements for prestressing a civil engineering works structure, has a block through which there pass at least two pairs of anchoring orifices arranged symmetrically on each side of a mid-plane of the block. The two orifices of each pair have axes substantially parallel to the mid-plane and are directed toward two opposite sides of the block to take, respectively, two ends of a taut reinforcement surrounding the structure. The block has a bearing zone pressed against the structure in response to the tension in the reinforcements.

Abstract: The invention concerns a method for repairing a pressurized fluid supply pipeline (1) comprising a series of buried prestressed concrete pipe segments (2, 3, 4) which consists in: providing excavations in the trench, beneath suitably set portions (6, 7) of the pipe (1), cleaning up said pipe portions, installing and tensioning the prestressed reinforcements (12) around said portions of the pipe and filling up the excavations with earth material by compacting said material.

Abstract: The invention concerns a method for repairing a pressurised fluid supply pipeline (1) comprising a series of buried prestressed concrete pipe segments (2, 3, 4) which consists in: providing excavations in the trench, beneath suitably set portions (6, 7) of the pipe (1), cleaning up said pipe portions, installing and tensioning the prestressed reinforcements (12) around said portions of the pipe and filling up the excavations with earth material by compacting said material.

Abstract: The anchoring device is provided with at least two prestressing reinforcements for a work structure (3) and comprises a block (1) with at least two pairs anchoring openings (4) extending therethrough and which are disposed symmetrically on both sides of the median plane of the block (1), wherein the two openings of each pair have axes which are substantially parallel to said median plane and are oriented towards two opposite sides of the block (1) in order to respectively receive two ends (11) of a tensed reinforcement surrounding said structure (3) and wherein said block (1) is provided with a hearing zone (2) which is pressed against the structure (3) in order to react to the tension of the reinforcements.