For your projects, you can rely on Soletanche Bachy’s foundation

solutions and soil technologies.

Whether as a general contractor or specialist subcontractor, we work alongside you for the construction all types of geotechnical infrastructure worldwide: bridges, roads, rail lines, tunnels, dams, mines, buildings, ports, etc.

Our markets

Our markets



As structures that are anchored in the ground, dams have formed part of the core activity of Soletanche Bachy for almost a century. We bring all our geotechnical solutions and engineering and design capabilities into play to deliver your hydraulic and hydroelectric dam projects, wherever you are in the world.

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A full range of techniques and procedures for foundations and soil technologies

Soletanche Bachy develops the geotechnical solutions that are best suited to your project and your worksite, including deep foundations (piles, micropiles), retaining structures (diaphragm walls), reinforcing (freezing, underpinning), and cut-off solutions (grouting, Deep Soil Mixing).

Our techniques

Our techniques


Ground improvement

We ensure the longevity of your structures – even on poor quality soils and in earthquake zones.

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Our processes

Our processes

Soletanche Bachy relies on a wide portfolio of techniques to offer you a solution adapted to the constraints of your project.

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Buton / fouille / paroi moulée