Soletanche Freyssinet

Freyssinet International (stup)

Vinci Construction

Jérôme Stubler

Erik Mellier

Ivica Zivanovic

Christian Tourneur

Nicolas Fabry

Jean-Daniel Lebon

Bernard Basile

Gilles Hovhanessian

Benoît Lecinq

Aurélien Sylvestre

Julien Erdogan

Fernand De Melo

Maxime Trocme

Sébastien Petit

Raphaël Gueulet

Stéphanie Joye

Jean-Serge Boissavit

Mike McClenahan

Philippe Zanker

Guy Bousquet

Jean-Philippe Ricard

Romain Nicolas

Stéphane Joye

Bertrand Thidet

Marc Lacazedieu

A repair method for a civil engineering work. The method includes the depositing, directly onto a portion of the work to be repaired, of a reinforcing structure formed from one or more successive layers of at least one reinforcing material which are each extruded in contact with the surface onto which the material is to be deposited, using a robot system, with the material being extruded in strips.

Method for repairing a civil engineering structure

A method for freezing and treating a mass of soil, making it possible to compensate for deformations of the mass of soil during thawing, including the following steps: a) producing at least one bore () in the mass of soil, b) at least partly freezing the mass of soil using a freezing fluid injected into the bore, and then c) injecting a compensation grouting into the mass of soil, using the bore () that was used for freezing, during the thawing phase in order to at least partly compensate for variations in the volume of the mass of soil when the latter thaws.

Method and device for freezing a mass of soil

A transport installation includes a traction member extending in a circuit and associated with an external power source so as to be moved along the circuit, a vehicle having a power storage system, a motor system, a generator system and a fixed support adjacent to the circuit. The generator system of the vehicle includes a generator that may be activated to supply power to the storage system when the vehicle is coupled to the traction member and driven along the circuit by the traction member. The motor system of the vehicle includes a motor that may be activated to receive power from the storage system and move the vehicle relative to the fixed support.

Cable or similar transport installation, and vehicle suitable for such installation

A method of damping the vibrations of at least one pair of stay cables of a civil engineering structure, in which the stay cables of said pair are linked by a damper having a first stiffness in response to tensile stress and a second stiffness in response to compressive stress, the first stiffness being greater than the second stiffness.

Method of damping the vibrations of stay cables and associated system

A device () for damping vibrations in a cable () comprises an arm () oscillating about a pivot (), a first damper () for damping the oscillations of the arm, a coupler () attached to the cable, a second, linear-travel damper () having an upper end connected to the coupler and a lower end connected to the arm, and a guide () for sliding the coupler with respect to the arm parallel to the travel of the second damper such that the movements of the cable that are transverse to the travel of the second damper are transmitted to the arm independently of the second damper.

Device for damping vibrations in a cable

The anchoring device for a cable made of plurality of tendons comprises an anchor block having a front side, a rear side and channels extending between the front and rear sides, each tendon of the cable being received in a respective channel with a blocking member. It also comprises a first protective material with which at least some of the channels of the anchor block are filled, a chamber containing portions of the plurality of tendons of the cable, located on at least one of the front and rear sides of the anchor block, and a second protective material, different from the first protective material, with which the chamber is filled.

Anchoring device for a multi-tendon cable

The method comprises the following steps for each of the reinforcing bands: a) anchoring a first zone () of the reinforcing band onto the construction work and establishing a free portion of the reinforcing band; b) tensioning the reinforcing band () by applying traction to a second zone of the reinforcing band located in the free portion, said traction causing an elongation (d, d, d) of and a reactive force (R, R, R) in the reinforcing band, with the free portion of the reinforcing band being free to slide on the construction work as it elongates; and c) mechanically attaching the reinforcing band to itself and/or to the construction work, so as to absorb the reactive force from the reinforcing band within a region of the construction work which can support the reactive force from the reinforcing band.

Method for reinforcing a construction work using reinforcing bands

A composite structural reinforcement is realized within the pipe through in situ stratification of at least one band of reinforcement fibers and a resin matrix. The band is arranged according to a helicoidal path along the internal side of the pipe.

Method of reinforcing an embedded cylindrical pipe

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

Method for repairing pipes

The structural cable () to be anchored, such as a main suspension cable or a stay cable, is made of a compact bundle of parallel metallic wires. The cable wires are distributed into seven-wire units () in a portion of the cable adjacent to an anchor block (), and these seven-wire units are individually anchored on the anchor block.

Growing community of inventors

Paris, France

Jérôme Stubler