Thursday September 7th, 2017
Built in the port of Saint-Nazaire, Floatgen, France’s first floating wind turbine, has taken a new major step forward. The concrete foundation was floated on 23 August after a construction process which began in the autumn of 2016.
After installing the wind turbine’s mooring system off the coast of Le Croisic last July, the foundation took to the water, marking a new key stage in the project implemented by Ideol, the Ecole Centrale de Nantes and Bouygues Travaux Publics. The concrete foundation was tugged into the Forme Joubert Lock, a dry dock at the entrance to the port of Saint-Nazaire to be floated, a tricky technical operation to float off the floater from the three barges on which it had been built.
“Everything was placed in dry dock on concrete and wooden blocks which support the keel of a ship during dry construction. The barges were then filled with water to be sunk. When the lock was filled with water, the floater disengaged from its support”, explains Perceval Modiano, project manager at Bouygues Travaux Publics.
The imposing, 5,000-tonne concrete structure, 36 metres square by 9.5 metres high, will soon be accommodating a 2-MW wind turbine. The project’s next stage will be to mount the wind turbine’s tower, the turbine and its blades. The final unit will top out at over 80 metres.
By mid-October, it will be towed to the SEM-REV installation site, 22 km off the coast of Le Croisic for initial trials covering a period of 2 years.
Highlight of the worksite: “we have developed a lightweight, self-compacting type of concrete to minimise the weight of the structure and pour the concrete without vibrating it,” explains Régis Bigard, head of the Floatgen project with Bouygues Travaux Publics.
“Keep your eyes open, listen and feel” In the last episode in the Bouygues Travaux Publics’ “A pilot’s life” mini-series, immerse yourself with Fabrice, 47, a TBM manager on Tuen Mun-Chek Lap Kok Link project in Hong Kong. With innovation and respect for the environment central to the project, the extraordinary tunnel was dug out by […]
Challenger, which was built in 1988 to house all Bouygues’ business activities, has been the window onto the Group’s know-how for 30 years. Between 1988 and 2018, the headquarters have transformed, mirroring the change in the company. Here is a picture review of thirty years of constant progress.
The Fort d’Issy-Vanves-Clamart station took a crucial step in the night of 12-13 August: the 7,000 tonnes of concrete forming the roof were slipped briskly into place by Bouygues Travaux Publics teams.
A month ago, over 2,000 people came to visit it and discover its entrance hall, buildings, emergency room and imaging centre. Today, this brand new Nord Deux-Sèvres hospital welcomed its first patient. Let’s take a look back at one of our most technologically advanced worksites in terms of digital modelling.
Since 23 June, Nantes residents have been rediscovering the Musée des Beaux-Arts, now named Musée d’Arts de Nantes, after six years of closure and 33 months of work by Bouygues Bâtiment Grand Ouest. The building and its visual treasure trove are an emblem of the city’s heritage!
(Français) Face à l’augmentation du nombre de seniors dans nos sociétés et à l’évolution de leur style de vie, il est nécessaire de repenser notre vision de l’habitat pour concevoir des logements qui répondent à leurs nouvelles attentes.
After intriguing locals and music lovers for three years, the Seine Musicale is finally being unveiled. The new cultural centre of the Hauts-de-Seine department, which marks the renewal of the Ile Seguin, will be officially inaugurated on Saturday 22 April. Guided tour of this liner dedicated to all music genres, a real technical feat for […]
On April 26, 1986 the Chernobyl accident happened. Bouygues Travaux Publics, within the Novarka consortium led by VINCI Construction Grands Projets, realised in November 2016 the sliding operation of the confinement shelter over 327 metres. Relive in video the installation of the metal structure that will guarantee the safety for the next 100 years. Find out more information about […]
A photography exhibition of works by young photographers at the Fondation Jérôme Seydoux-Pathé.
