摘要:
The present invention concerns a device (110) and a method for locally repairing or reinforcing an elongate body (100), said device (110) being intended for winding one or a plurality of layers of a pre-impregnated polymerisable strip around the elongate body (100), said device (110) comprising: - releasable means (112, 113) of attachment around the elongate body (100), - means for the rotational movement of a support structure (125) around the means (112, 113) of attachment, - means for the longitudinal movement of a spool (135) of a pre-impregnated polymerisable strip relative to the support structure (125), said support (125) comprising means for limiting the movement of the spool to a predetermined path, said spool (135) being unwindable when it is subjected to a given tension, - means for bringing the spool (135) into rotational and translational movement around the elongate body (100), causing the pre-impregnated polymerisable strip to be wound around said body.
摘要:
A device for local repair or strengthening of an elongate body (35) exhibiting a change in its integrity, by winding one or more layers of tape around the elongate body, comprises: - two half rings (31, 32) each having two ends configured to come into contact with each other, - means for displacing the two half rings with respect to each other until they surround, without touching, the elongate body and - means for displacing the two half rings with respect to each other in translation along an axis perpendicular to the axis of the elongate body until the ends of the half rings are in contact to form a ring surrounding the elongate body. In the embodiments, the device comprises, on at least one of the half rings, at least one centring pin (34), corresponding with an opening (33) in the other half ring, having a shape complimentary to the shape of said centring pin.
摘要:
A reinforcement strip (20) suitable for repairing a fluid transport pipe (10) during which the strip is wound, under traction, around the portion of the pipe where the repair needs to be made at the same time that a crosslinking resin is applied to the strip in such a way as to form a sleeve around the portion to be repaired. The reinforcement strip comprises at least one integrated metal wire, the electrical properties of the wire being used for operations comprising crosslinking the resin, detecting the portion of the pipe that comprises the sleeve or detecting repaired portions of the pipe that have increased in diameter due to a thinning of the wall of the pipe.
摘要:
A retaining plate (30) made from a rigid material comprising tips on each of the two faces of same, the tips of each of the faces of a length of between 1 and 3 mm making an angle in the forward direction with the face of between 30° and 60°. The retaining plate is secured by the tips of one of the faces of same at the final end (28) of a first reinforcing strip (26) already positioned on the degraded portion of a pipe, and secured to the initial end (32) of a second reinforcing strip to be wound following the first reinforcing strip by the tips of the other face, said tips being tilted towards the initial end (32) of said second reinforcing strip.
摘要:
The invention relates to a repair method which applies to a pylon having an H-shaped cross-section (1), in particular for supporting catenaries, having at least one embrittled portion. Two substantially box-shaped metal inserts (7b) are placed opposite one another on either side of the core of the H, as well as two metal plates on each wing (3a, 3b) of the H, and said two inserts (7b) and said two metal plates (9a, 9b) are simultaneously attached by means of at least of one strip of composite material (11) having a self-hardening resin matrix.