Our history

Use of 1,000t prestressed ground anchors to raise the structure

The company becomes Solétanche in 1948

Development of the socket pipe for alluvial soil grouting

The diaphragm wall is used for the first time.

The panels of the cut-off wall pass through blocks of very hard andesite, some of which are over 100 m deep.

The panels of the cut-off walls pass through blocks of very hard andesite, some of which are over 100 m deep.

135 million m3 of soil are treated by vibroflotation.

The group includes Soletanche Bachy, Menard, Terre Armée, Freyssinet, Nuvia and now Sixense.

Implementation of the Tunnel Dismantling Machine (TDM), specially manufactured by Bessac. This is a machine for dismantling an existing tunnel.

A solution for very deep digging in very hard ground (resistance in excess of 100 MPa).

The world’s largest ever Soil Mixing project.

World record for the installation of a CWS® joint at a depth of 74 metres at Vert-de-Maisons station.

Z-Lyze is Soletanche Bachy’s platform for collecting, processing and analyzing site data (Big Data).

Because we believe in reasoned, sustainable growth, which involves advancing our foundation and soil technologies’sites and supporting the evolution of our industry by imagining new environmental solutions for projects, we have set up an action plan focused on three objectives
of our industry by imagining new environmental solutions for projects:

• Reducing emissions of carbon dioxide produced directly by our activities (diesel, gasoline).
• Reducing emissions linked to the production of electricity purchased by Soletanche Bachy.
• Reducing all indirect emissions (concrete, steel, subcontracting, etc.).

Exegy by Soletanche Bachy, the low-carbon concrete and grout supply service for foundations.

Construction of the world’s first tunnel made entirely of EXEGY ultra-low-carbon concrete pipes at Bonneuil-en-France.

BESSAC Tuyaux Béton Bas Carbone Pour Chantier / Dugny Photo : Yves Chanoit